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Finding the Fourth Proportional to 717.26, 1,076.88 and 370.88

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Solution

The fourth proportional to 717.26, 1,076.88 and 370.88 is: 556.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.26 : 1,076.88 = 370.88 : x
  2. Step 2: Convert to fraction form
    717.26/1,076.88 = 370.88/x
  3. Step 3: Cross multiply
    717.26x = 1,076.88 × 370.88
  4. Step 4: Simplify right side
    717.26x = 399,393.25
  5. Step 5: Solve for x
    x = 399,393.25/717.26
  6. Step 6: Final answer
    x = 556.83

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.