Home / 424,209.28-636,314.10-124,689.88

Finding the Fourth Proportional to 424,209.28, 636,314.10 and 124,689.88

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Solution

The fourth proportional to 424,209.28, 636,314.10 and 124,689.88 is: 187,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,209.28 : 636,314.10 = 124,689.88 : x
  2. Step 2: Convert to fraction form
    424,209.28/636,314.10 = 124,689.88/x
  3. Step 3: Cross multiply
    424,209.28x = 636,314.10 × 124,689.88
  4. Step 4: Simplify right side
    424,209.28x = 79,341,928,771.31
  5. Step 5: Solve for x
    x = 79,341,928,771.31/424,209.28
  6. Step 6: Final answer
    x = 187,034.87

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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.