Home / 661,531.22-991,424.92-261,954.02

Finding the Fourth Proportional to 661,531.22, 991,424.92 and 261,954.02

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Solution

The fourth proportional to 661,531.22, 991,424.92 and 261,954.02 is: 392,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,531.22 : 991,424.92 = 261,954.02 : x
  2. Step 2: Convert to fraction form
    661,531.22/991,424.92 = 261,954.02/x
  3. Step 3: Cross multiply
    661,531.22x = 991,424.92 × 261,954.02
  4. Step 4: Simplify right side
    661,531.22x = 259,707,737,710.17
  5. Step 5: Solve for x
    x = 259,707,737,710.17/661,531.22
  6. Step 6: Final answer
    x = 392,585.76

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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.