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Finding the Fourth Proportional to 717.53, 1,076.15 and 352.08

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Solution

The fourth proportional to 717.53, 1,076.15 and 352.08 is: 528.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.53 : 1,076.15 = 352.08 : x
  2. Step 2: Convert to fraction form
    717.53/1,076.15 = 352.08/x
  3. Step 3: Cross multiply
    717.53x = 1,076.15 × 352.08
  4. Step 4: Simplify right side
    717.53x = 378,891.77
  5. Step 5: Solve for x
    x = 378,891.77/717.53
  6. Step 6: Final answer
    x = 528.05

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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.