Home / 981,517.86-1,472,276.07-316,669.86

Finding the Fourth Proportional to 981,517.86, 1,472,276.07 and 316,669.86

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Solution

The fourth proportional to 981,517.86, 1,472,276.07 and 316,669.86 is: 475,004.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,517.86 : 1,472,276.07 = 316,669.86 : x
  2. Step 2: Convert to fraction form
    981,517.86/1,472,276.07 = 316,669.86/x
  3. Step 3: Cross multiply
    981,517.86x = 1,472,276.07 × 316,669.86
  4. Step 4: Simplify right side
    981,517.86x = 466,225,456,968.25
  5. Step 5: Solve for x
    x = 466,225,456,968.25/981,517.86
  6. Step 6: Final answer
    x = 475,004.56

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Double scale
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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.