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Finding the Fourth Proportional to 871,825.16, 1,203,132.95 and 479,374.70

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Solution

The fourth proportional to 871,825.16, 1,203,132.95 and 479,374.70 is: 661,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,825.16 : 1,203,132.95 = 479,374.70 : x
  2. Step 2: Convert to fraction form
    871,825.16/1,203,132.95 = 479,374.70/x
  3. Step 3: Cross multiply
    871,825.16x = 1,203,132.95 × 479,374.70
  4. Step 4: Simplify right side
    871,825.16x = 576,751,488,553.83
  5. Step 5: Solve for x
    x = 576,751,488,553.83/871,825.16
  6. Step 6: Final answer
    x = 661,544.90

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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.