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Finding the Fourth Proportional to 485,371.38, 728,057.07 and 484,670.46

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Solution

The fourth proportional to 485,371.38, 728,057.07 and 484,670.46 is: 727,005.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,371.38 : 728,057.07 = 484,670.46 : x
  2. Step 2: Convert to fraction form
    485,371.38/728,057.07 = 484,670.46/x
  3. Step 3: Cross multiply
    485,371.38x = 728,057.07 × 484,670.46
  4. Step 4: Simplify right side
    485,371.38x = 352,867,755,023.15
  5. Step 5: Solve for x
    x = 352,867,755,023.15/485,371.38
  6. Step 6: Final answer
    x = 727,005.69

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Similar ratio
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1.5x scale

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.