Finding the Fourth Proportional to 527,097.70, 727,385.97 and 285,378.31
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Solution
The fourth proportional to 527,097.70, 727,385.97 and 285,378.31 is: 393,817.27
Step by Step Solution
- Step 1: Write the proportion equation
527,097.70 : 727,385.97 = 285,378.31 : x - Step 2: Convert to fraction form
527,097.70/727,385.97 = 285,378.31/x - Step 3: Cross multiply
527,097.70x = 727,385.97 × 285,378.31 - Step 4: Simplify right side
527,097.70x = 207,580,178,836.31 - Step 5: Solve for x
x = 207,580,178,836.31/527,097.70 - Step 6: Final answer
x = 393,817.27
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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.