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Finding the Fourth Proportional to 982,891.10, 1,474,691.42 and 343,288.97

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Solution

The fourth proportional to 982,891.10, 1,474,691.42 and 343,288.97 is: 515,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,891.10 : 1,474,691.42 = 343,288.97 : x
  2. Step 2: Convert to fraction form
    982,891.10/1,474,691.42 = 343,288.97/x
  3. Step 3: Cross multiply
    982,891.10x = 1,474,691.42 × 343,288.97
  4. Step 4: Simplify right side
    982,891.10x = 506,245,303,184.59
  5. Step 5: Solve for x
    x = 506,245,303,184.59/982,891.10
  6. Step 6: Final answer
    x = 515,057.37

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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.