Home / 410,530.31-615,854.25-126,244.69

Finding the Fourth Proportional to 410,530.31, 615,854.25 and 126,244.69

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Solution

The fourth proportional to 410,530.31, 615,854.25 and 126,244.69 is: 189,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,530.31 : 615,854.25 = 126,244.69 : x
  2. Step 2: Convert to fraction form
    410,530.31/615,854.25 = 126,244.69/x
  3. Step 3: Cross multiply
    410,530.31x = 615,854.25 × 126,244.69
  4. Step 4: Simplify right side
    410,530.31x = 77,748,328,876.43
  5. Step 5: Solve for x
    x = 77,748,328,876.43/410,530.31
  6. Step 6: Final answer
    x = 189,385.11

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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.