Home / 445,278.28-667,924.70-129,752.44

Finding the Fourth Proportional to 445,278.28, 667,924.70 and 129,752.44

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Solution

The fourth proportional to 445,278.28, 667,924.70 and 129,752.44 is: 194,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,278.28 : 667,924.70 = 129,752.44 : x
  2. Step 2: Convert to fraction form
    445,278.28/667,924.70 = 129,752.44/x
  3. Step 3: Cross multiply
    445,278.28x = 667,924.70 × 129,752.44
  4. Step 4: Simplify right side
    445,278.28x = 86,664,859,561.27
  5. Step 5: Solve for x
    x = 86,664,859,561.27/445,278.28
  6. Step 6: Final answer
    x = 194,630.78

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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.