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Finding the Fourth Proportional to 625,224.60, 862,333.83 and 538,157.88

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Solution

The fourth proportional to 625,224.60, 862,333.83 and 538,157.88 is: 742,248.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,224.60 : 862,333.83 = 538,157.88 : x
  2. Step 2: Convert to fraction form
    625,224.60/862,333.83 = 538,157.88/x
  3. Step 3: Cross multiply
    625,224.60x = 862,333.83 × 538,157.88
  4. Step 4: Simplify right side
    625,224.60x = 464,071,745,805.08
  5. Step 5: Solve for x
    x = 464,071,745,805.08/625,224.60
  6. Step 6: Final answer
    x = 742,248.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.