Finding the Fourth Proportional to 777,515.13, 1,166,397.71 and 272,064.83
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Solution
The fourth proportional to 777,515.13, 1,166,397.71 and 272,064.83 is: 408,140.98
Step by Step Solution
- Step 1: Write the proportion equation
777,515.13 : 1,166,397.71 = 272,064.83 : x - Step 2: Convert to fraction form
777,515.13/1,166,397.71 = 272,064.83/x - Step 3: Cross multiply
777,515.13x = 1,166,397.71 × 272,064.83 - Step 4: Simplify right side
777,515.13x = 317,335,787,491.23 - Step 5: Solve for x
x = 317,335,787,491.23/777,515.13 - Step 6: Final answer
x = 408,140.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.