Home / 439,330.10-659,119.17-123,789.74

Finding the Fourth Proportional to 439,330.10, 659,119.17 and 123,789.74

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Solution

The fourth proportional to 439,330.10, 659,119.17 and 123,789.74 is: 185,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,330.10 : 659,119.17 = 123,789.74 : x
  2. Step 2: Convert to fraction form
    439,330.10/659,119.17 = 123,789.74/x
  3. Step 3: Cross multiply
    439,330.10x = 659,119.17 × 123,789.74
  4. Step 4: Simplify right side
    439,330.10x = 81,592,190,683.32
  5. Step 5: Solve for x
    x = 81,592,190,683.32/439,330.10
  6. Step 6: Final answer
    x = 185,719.56

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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.