Home / 811,776.64-1,120,565.76-726,745.92

Finding the Fourth Proportional to 811,776.64, 1,120,565.76 and 726,745.92

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Solution

The fourth proportional to 811,776.64, 1,120,565.76 and 726,745.92 is: 1,003,190.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,776.64 : 1,120,565.76 = 726,745.92 : x
  2. Step 2: Convert to fraction form
    811,776.64/1,120,565.76 = 726,745.92/x
  3. Step 3: Cross multiply
    811,776.64x = 1,120,565.76 × 726,745.92
  4. Step 4: Simplify right side
    811,776.64x = 814,366,594,171.70
  5. Step 5: Solve for x
    x = 814,366,594,171.70/811,776.64
  6. Step 6: Final answer
    x = 1,003,190.48

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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.