Home / 410,481.20-615,660.24-129,962

Finding the Fourth Proportional to 410,481.20, 615,660.24 and 129,962

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Solution

The fourth proportional to 410,481.20, 615,660.24 and 129,962 is: 194,923.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,481.20 : 615,660.24 = 129,962 : x
  2. Step 2: Convert to fraction form
    410,481.20/615,660.24 = 129,962/x
  3. Step 3: Cross multiply
    410,481.20x = 615,660.24 × 129,962
  4. Step 4: Simplify right side
    410,481.20x = 80,012,436,110.88
  5. Step 5: Solve for x
    x = 80,012,436,110.88/410,481.20
  6. Step 6: Final answer
    x = 194,923.51

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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.