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Finding the Fourth Proportional to 576,043.60, 862,553.40 and 406,649.20

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Solution

The fourth proportional to 576,043.60, 862,553.40 and 406,649.20 is: 608,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,043.60 : 862,553.40 = 406,649.20 : x
  2. Step 2: Convert to fraction form
    576,043.60/862,553.40 = 406,649.20/x
  3. Step 3: Cross multiply
    576,043.60x = 862,553.40 × 406,649.20
  4. Step 4: Simplify right side
    576,043.60x = 350,756,650,067.28
  5. Step 5: Solve for x
    x = 350,756,650,067.28/576,043.60
  6. Step 6: Final answer
    x = 608,906.43

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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.