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Finding the Fourth Proportional to 871,751.64, 1,203,159.96 and 726,326.76

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Solution

The fourth proportional to 871,751.64, 1,203,159.96 and 726,326.76 is: 1,002,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,751.64 : 1,203,159.96 = 726,326.76 : x
  2. Step 2: Convert to fraction form
    871,751.64/1,203,159.96 = 726,326.76/x
  3. Step 3: Cross multiply
    871,751.64x = 1,203,159.96 × 726,326.76
  4. Step 4: Simplify right side
    871,751.64x = 873,887,275,508.53
  5. Step 5: Solve for x
    x = 873,887,275,508.53/871,751.64
  6. Step 6: Final answer
    x = 1,002,449.82

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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.