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Finding the Fourth Proportional to 439,253.64, 658,891.26 and 123,708.42

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Solution

The fourth proportional to 439,253.64, 658,891.26 and 123,708.42 is: 185,565.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,253.64 : 658,891.26 = 123,708.42 : x
  2. Step 2: Convert to fraction form
    439,253.64/658,891.26 = 123,708.42/x
  3. Step 3: Cross multiply
    439,253.64x = 658,891.26 × 123,708.42
  4. Step 4: Simplify right side
    439,253.64x = 81,510,396,726.41
  5. Step 5: Solve for x
    x = 81,510,396,726.41/439,253.64
  6. Step 6: Final answer
    x = 185,565.67

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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.