Home / 438,979.24-658,469.10-123,436.15

Finding the Fourth Proportional to 438,979.24, 658,469.10 and 123,436.15

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Solution

The fourth proportional to 438,979.24, 658,469.10 and 123,436.15 is: 185,154.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,979.24 : 658,469.10 = 123,436.15 : x
  2. Step 2: Convert to fraction form
    438,979.24/658,469.10 = 123,436.15/x
  3. Step 3: Cross multiply
    438,979.24x = 658,469.10 × 123,436.15
  4. Step 4: Simplify right side
    438,979.24x = 81,278,890,597.97
  5. Step 5: Solve for x
    x = 81,278,890,597.97/438,979.24
  6. Step 6: Final answer
    x = 185,154.29

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1.5x scale

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.