Finding the Fourth Proportional to 656,869.70, 985,693.35 and 432,877.70
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Solution
The fourth proportional to 656,869.70, 985,693.35 and 432,877.70 is: 649,572.77
Step by Step Solution
- Step 1: Write the proportion equation
656,869.70 : 985,693.35 = 432,877.70 : x - Step 2: Convert to fraction form
656,869.70/985,693.35 = 432,877.70/x - Step 3: Cross multiply
656,869.70x = 985,693.35 × 432,877.70 - Step 4: Simplify right side
656,869.70x = 426,684,670,253.30 - Step 5: Solve for x
x = 426,684,670,253.30/656,869.70 - Step 6: Final answer
x = 649,572.77
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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.