Finding the Fourth Proportional to 721,951.97, 996,305.52 and 395,259.53
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Solution
The fourth proportional to 721,951.97, 996,305.52 and 395,259.53 is: 545,464.61
Step by Step Solution
- Step 1: Write the proportion equation
721,951.97 : 996,305.52 = 395,259.53 : x - Step 2: Convert to fraction form
721,951.97/996,305.52 = 395,259.53/x - Step 3: Cross multiply
721,951.97x = 996,305.52 × 395,259.53 - Step 4: Simplify right side
721,951.97x = 393,799,251,571.61 - Step 5: Solve for x
x = 393,799,251,571.61/721,951.97 - Step 6: Final answer
x = 545,464.61
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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.