Home / 861,538.02-1,188,902.76-539,425.73

Finding the Fourth Proportional to 861,538.02, 1,188,902.76 and 539,425.73

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Solution

The fourth proportional to 861,538.02, 1,188,902.76 and 539,425.73 is: 744,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,538.02 : 1,188,902.76 = 539,425.73 : x
  2. Step 2: Convert to fraction form
    861,538.02/1,188,902.76 = 539,425.73/x
  3. Step 3: Cross multiply
    861,538.02x = 1,188,902.76 × 539,425.73
  4. Step 4: Simplify right side
    861,538.02x = 641,324,736,508.12
  5. Step 5: Solve for x
    x = 641,324,736,508.12/861,538.02
  6. Step 6: Final answer
    x = 744,395.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.