Home / 424,579.02-636,766.38-124,978.20

Finding the Fourth Proportional to 424,579.02, 636,766.38 and 124,978.20

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Solution

The fourth proportional to 424,579.02, 636,766.38 and 124,978.20 is: 187,437.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,579.02 : 636,766.38 = 124,978.20 : x
  2. Step 2: Convert to fraction form
    424,579.02/636,766.38 = 124,978.20/x
  3. Step 3: Cross multiply
    424,579.02x = 636,766.38 × 124,978.20
  4. Step 4: Simplify right side
    424,579.02x = 79,581,915,992.92
  5. Step 5: Solve for x
    x = 79,581,915,992.92/424,579.02
  6. Step 6: Final answer
    x = 187,437.23

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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.