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Finding the Fourth Proportional to 564,286.95, 845,985.09 and 279,781.32

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Solution

The fourth proportional to 564,286.95, 845,985.09 and 279,781.32 is: 419,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,286.95 : 845,985.09 = 279,781.32 : x
  2. Step 2: Convert to fraction form
    564,286.95/845,985.09 = 279,781.32/x
  3. Step 3: Cross multiply
    564,286.95x = 845,985.09 × 279,781.32
  4. Step 4: Simplify right side
    564,286.95x = 236,690,825,180.52
  5. Step 5: Solve for x
    x = 236,690,825,180.52/564,286.95
  6. Step 6: Final answer
    x = 419,451.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.