Finding the Fourth Proportional to 656,155.17, 905,494.05 and 354,349.17
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Solution
The fourth proportional to 656,155.17, 905,494.05 and 354,349.17 is: 489,001.81
Step by Step Solution
- Step 1: Write the proportion equation
656,155.17 : 905,494.05 = 354,349.17 : x - Step 2: Convert to fraction form
656,155.17/905,494.05 = 354,349.17/x - Step 3: Cross multiply
656,155.17x = 905,494.05 × 354,349.17 - Step 4: Simplify right side
656,155.17x = 320,861,065,057.44 - Step 5: Solve for x
x = 320,861,065,057.44/656,155.17 - Step 6: Final answer
x = 489,001.81
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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.