Finding the Fourth Proportional to 823,365.68, 1,136,220.20 and 455,859.18
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Solution
The fourth proportional to 823,365.68, 1,136,220.20 and 455,859.18 is: 629,072.14
Step by Step Solution
- Step 1: Write the proportion equation
823,365.68 : 1,136,220.20 = 455,859.18 : x - Step 2: Convert to fraction form
823,365.68/1,136,220.20 = 455,859.18/x - Step 3: Cross multiply
823,365.68x = 1,136,220.20 × 455,859.18 - Step 4: Simplify right side
823,365.68x = 517,956,408,671.44 - Step 5: Solve for x
x = 517,956,408,671.44/823,365.68 - Step 6: Final answer
x = 629,072.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.