Finding the Fourth Proportional to 987,648.87, 1,363,066.05 and 557,956.68
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Solution
The fourth proportional to 987,648.87, 1,363,066.05 and 557,956.68 is: 770,042.71
Step by Step Solution
- Step 1: Write the proportion equation
987,648.87 : 1,363,066.05 = 557,956.68 : x - Step 2: Convert to fraction form
987,648.87/1,363,066.05 = 557,956.68/x - Step 3: Cross multiply
987,648.87x = 1,363,066.05 × 557,956.68 - Step 4: Simplify right side
987,648.87x = 760,531,807,878.71 - Step 5: Solve for x
x = 760,531,807,878.71/987,648.87 - Step 6: Final answer
x = 770,042.71
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.