Home / 811,778.64-1,120,568.52-726,747.92

Finding the Fourth Proportional to 811,778.64, 1,120,568.52 and 726,747.92

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Solution

The fourth proportional to 811,778.64, 1,120,568.52 and 726,747.92 is: 1,003,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,778.64 : 1,120,568.52 = 726,747.92 : x
  2. Step 2: Convert to fraction form
    811,778.64/1,120,568.52 = 726,747.92/x
  3. Step 3: Cross multiply
    811,778.64x = 1,120,568.52 × 726,747.92
  4. Step 4: Simplify right side
    811,778.64x = 814,370,841,127.48
  5. Step 5: Solve for x
    x = 814,370,841,127.48/811,778.64
  6. Step 6: Final answer
    x = 1,003,193.24

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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.