Finding the Fourth Proportional to 387,708.60, 581,590.68 and 103,397.70
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Solution
The fourth proportional to 387,708.60, 581,590.68 and 103,397.70 is: 155,103.96
Step by Step Solution
- Step 1: Write the proportion equation
387,708.60 : 581,590.68 = 103,397.70 : x - Step 2: Convert to fraction form
387,708.60/581,590.68 = 103,397.70/x - Step 3: Cross multiply
387,708.60x = 581,590.68 × 103,397.70 - Step 4: Simplify right side
387,708.60x = 60,135,138,653.44 - Step 5: Solve for x
x = 60,135,138,653.44/387,708.60 - Step 6: Final answer
x = 155,103.96
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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.