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Finding the Fourth Proportional to 716.92, 1,077 and 580.84

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Solution

The fourth proportional to 716.92, 1,077 and 580.84 is: 872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    716.92 : 1,077 = 580.84 : x
  2. Step 2: Convert to fraction form
    716.92/1,077 = 580.84/x
  3. Step 3: Cross multiply
    716.92x = 1,077 × 580.84
  4. Step 4: Simplify right side
    716.92x = 625,564.68
  5. Step 5: Solve for x
    x = 625,564.68/716.92
  6. Step 6: Final answer
    x = 872.57

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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.