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Finding the Fourth Proportional to 802,162.89, 1,203,512.31 and 262,443.87

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Solution

The fourth proportional to 802,162.89, 1,203,512.31 and 262,443.87 is: 393,753.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,162.89 : 1,203,512.31 = 262,443.87 : x
  2. Step 2: Convert to fraction form
    802,162.89/1,203,512.31 = 262,443.87/x
  3. Step 3: Cross multiply
    802,162.89x = 1,203,512.31 × 262,443.87
  4. Step 4: Simplify right side
    802,162.89x = 315,854,428,229.04
  5. Step 5: Solve for x
    x = 315,854,428,229.04/802,162.89
  6. Step 6: Final answer
    x = 393,753.48

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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.