Home / 424,489.28-636,514.77-124,930.94

Finding the Fourth Proportional to 424,489.28, 636,514.77 and 124,930.94

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Solution

The fourth proportional to 424,489.28, 636,514.77 and 124,930.94 is: 187,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,489.28 : 636,514.77 = 124,930.94 : x
  2. Step 2: Convert to fraction form
    424,489.28/636,514.77 = 124,930.94/x
  3. Step 3: Cross multiply
    424,489.28x = 636,514.77 × 124,930.94
  4. Step 4: Simplify right side
    424,489.28x = 79,520,388,539.98
  5. Step 5: Solve for x
    x = 79,520,388,539.98/424,489.28
  6. Step 6: Final answer
    x = 187,331.91

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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.