Finding the Fourth Proportional to 478,935.07, 661,026.18 and 275,125.80
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Solution
The fourth proportional to 478,935.07, 661,026.18 and 275,125.80 is: 379,728.63
Step by Step Solution
- Step 1: Write the proportion equation
478,935.07 : 661,026.18 = 275,125.80 : x - Step 2: Convert to fraction form
478,935.07/661,026.18 = 275,125.80/x - Step 3: Cross multiply
478,935.07x = 661,026.18 × 275,125.80 - Step 4: Simplify right side
478,935.07x = 181,865,356,593.44 - Step 5: Solve for x
x = 181,865,356,593.44/478,935.07 - Step 6: Final answer
x = 379,728.63
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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.