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Finding the Fourth Proportional to 576,049.60, 862,562.40 and 406,655.20

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Solution

The fourth proportional to 576,049.60, 862,562.40 and 406,655.20 is: 608,915.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,049.60 : 862,562.40 = 406,655.20 : x
  2. Step 2: Convert to fraction form
    576,049.60/862,562.40 = 406,655.20/x
  3. Step 3: Cross multiply
    576,049.60x = 862,562.40 × 406,655.20
  4. Step 4: Simplify right side
    576,049.60x = 350,765,485,284.48
  5. Step 5: Solve for x
    x = 350,765,485,284.48/576,049.60
  6. Step 6: Final answer
    x = 608,915.42

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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.