Home / 905,983.20-1,250,229.96-518,785.92

Finding the Fourth Proportional to 905,983.20, 1,250,229.96 and 518,785.92

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Solution

The fourth proportional to 905,983.20, 1,250,229.96 and 518,785.92 is: 715,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,983.20 : 1,250,229.96 = 518,785.92 : x
  2. Step 2: Convert to fraction form
    905,983.20/1,250,229.96 = 518,785.92/x
  3. Step 3: Cross multiply
    905,983.20x = 1,250,229.96 × 518,785.92
  4. Step 4: Simplify right side
    905,983.20x = 648,601,700,010.16
  5. Step 5: Solve for x
    x = 648,601,700,010.16/905,983.20
  6. Step 6: Final answer
    x = 715,909.19

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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.