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Finding the Fourth Proportional to 739.17, 1,106.86 and 717.27

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Solution

The fourth proportional to 739.17, 1,106.86 and 717.27 is: 1,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    739.17 : 1,106.86 = 717.27 : x
  2. Step 2: Convert to fraction form
    739.17/1,106.86 = 717.27/x
  3. Step 3: Cross multiply
    739.17x = 1,106.86 × 717.27
  4. Step 4: Simplify right side
    739.17x = 793,911.66
  5. Step 5: Solve for x
    x = 793,911.66/739.17
  6. Step 6: Final answer
    x = 1,074.06

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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.