Home / 439,279.40-659,027.10-123,732.20

Finding the Fourth Proportional to 439,279.40, 659,027.10 and 123,732.20

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Solution

The fourth proportional to 439,279.40, 659,027.10 and 123,732.20 is: 185,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,279.40 : 659,027.10 = 123,732.20 : x
  2. Step 2: Convert to fraction form
    439,279.40/659,027.10 = 123,732.20/x
  3. Step 3: Cross multiply
    439,279.40x = 659,027.10 × 123,732.20
  4. Step 4: Simplify right side
    439,279.40x = 81,542,872,942.62
  5. Step 5: Solve for x
    x = 81,542,872,942.62/439,279.40
  6. Step 6: Final answer
    x = 185,628.72

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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.