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Finding the Fourth Proportional to 739.89, 1,107.86 and 592.92

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Solution

The fourth proportional to 739.89, 1,107.86 and 592.92 is: 887.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.89 : 1,107.86 = 592.92 : x
  2. Step 2: Convert to fraction form
    739.89/1,107.86 = 592.92/x
  3. Step 3: Cross multiply
    739.89x = 1,107.86 × 592.92
  4. Step 4: Simplify right side
    739.89x = 656,869.39
  5. Step 5: Solve for x
    x = 656,869.39/739.89
  6. Step 6: Final answer
    x = 887.79

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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.