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Finding the Fourth Proportional to 576,189.20, 862,242.60 and 502,122.80

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Solution

The fourth proportional to 576,189.20, 862,242.60 and 502,122.80 is: 751,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,189.20 : 862,242.60 = 502,122.80 : x
  2. Step 2: Convert to fraction form
    576,189.20/862,242.60 = 502,122.80/x
  3. Step 3: Cross multiply
    576,189.20x = 862,242.60 × 502,122.80
  4. Step 4: Simplify right side
    576,189.20x = 432,951,668,591.28
  5. Step 5: Solve for x
    x = 432,951,668,591.28/576,189.20
  6. Step 6: Final answer
    x = 751,405.39

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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.