A procedure is developed which unites the photometric and dynamic methods of calculating large meteoroid properties from their observed behavior in the atmosphere. By utilizing a linear separation of variables solution for the kinetic energy depletion factor in the classical single-body entry model the relationship between this factor and the various efficiencies of heat, radiation, ionization, compressional waves, etc. is obtained. By using this equivalency the radiation efficiency (integral value of the fractional 'light' production) can be calculated immediately without recourse to the complex quantum mechanical considerations first introduced by ¿pik if only the ratios of the various efficiencies to one another are known. By using the free molecular flow value of these ratios the radiation efficiency is predicted via this macroscopic approach without using further meteor data. If other nonintegral values of the radiation efficiency, such as those of ReVelle and Rajan (1979), are converted to the present definition, good agreement between the methods is obtained. Such agreement is also found for integral radiation efficiency values computed recently by Ceplecha for a number of the Prairie Network fireballs. These results suggest that the above ratios do not vary greatly between the extremes of free molecular and continuum flow. This conclusion is also consistent with the results of earlier workers.