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Finding the Fourth Proportional to 552,685.20, 829,027.80 and 487,366.80

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Solution

The fourth proportional to 552,685.20, 829,027.80 and 487,366.80 is: 731,050.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,685.20 : 829,027.80 = 487,366.80 : x
  2. Step 2: Convert to fraction form
    552,685.20/829,027.80 = 487,366.80/x
  3. Step 3: Cross multiply
    552,685.20x = 829,027.80 × 487,366.80
  4. Step 4: Simplify right side
    552,685.20x = 404,040,625,997.04
  5. Step 5: Solve for x
    x = 404,040,625,997.04/552,685.20
  6. Step 6: Final answer
    x = 731,050.20

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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.