Home / 398,819.64-598,100.04-132,508.65

Finding the Fourth Proportional to 398,819.64, 598,100.04 and 132,508.65

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Solution

The fourth proportional to 398,819.64, 598,100.04 and 132,508.65 is: 198,719.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,819.64 : 598,100.04 = 132,508.65 : x
  2. Step 2: Convert to fraction form
    398,819.64/598,100.04 = 132,508.65/x
  3. Step 3: Cross multiply
    398,819.64x = 598,100.04 × 132,508.65
  4. Step 4: Simplify right side
    398,819.64x = 79,253,428,865.35
  5. Step 5: Solve for x
    x = 79,253,428,865.35/398,819.64
  6. Step 6: Final answer
    x = 198,719.97

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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.