Finding the Fourth Proportional to 716,437.87, 1,074,656.61 and 491,115.19
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Solution
The fourth proportional to 716,437.87, 1,074,656.61 and 491,115.19 is: 736,672.65
Step by Step Solution
- Step 1: Write the proportion equation
716,437.87 : 1,074,656.61 = 491,115.19 : x - Step 2: Convert to fraction form
716,437.87/1,074,656.61 = 491,115.19/x - Step 3: Cross multiply
716,437.87x = 1,074,656.61 × 491,115.19 - Step 4: Simplify right side
716,437.87x = 527,780,177,376.05 - Step 5: Solve for x
x = 527,780,177,376.05/716,437.87 - Step 6: Final answer
x = 736,672.65
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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.