Finding the Fourth Proportional to 458,473.76, 687,678.08 and 121,506.92
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Solution
The fourth proportional to 458,473.76, 687,678.08 and 121,506.92 is: 182,251.75
Step by Step Solution
- Step 1: Write the proportion equation
458,473.76 : 687,678.08 = 121,506.92 : x - Step 2: Convert to fraction form
458,473.76/687,678.08 = 121,506.92/x - Step 3: Cross multiply
458,473.76x = 687,678.08 × 121,506.92 - Step 4: Simplify right side
458,473.76x = 83,557,645,452.31 - Step 5: Solve for x
x = 83,557,645,452.31/458,473.76 - Step 6: Final answer
x = 182,251.75
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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.