Finding the Fourth Proportional to 656,878.71, 985,233.21 and 207,644.92
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Solution
The fourth proportional to 656,878.71, 985,233.21 and 207,644.92 is: 311,440.55
Step by Step Solution
- Step 1: Write the proportion equation
656,878.71 : 985,233.21 = 207,644.92 : x - Step 2: Convert to fraction form
656,878.71/985,233.21 = 207,644.92/x - Step 3: Cross multiply
656,878.71x = 985,233.21 × 207,644.92 - Step 4: Simplify right side
656,878.71x = 204,578,667,830.04 - Step 5: Solve for x
x = 204,578,667,830.04/656,878.71 - Step 6: Final answer
x = 311,440.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.