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Finding the Fourth Proportional to 717.81, 1,074.69 and 562.29

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Solution

The fourth proportional to 717.81, 1,074.69 and 562.29 is: 841.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    717.81 : 1,074.69 = 562.29 : x
  2. Step 2: Convert to fraction form
    717.81/1,074.69 = 562.29/x
  3. Step 3: Cross multiply
    717.81x = 1,074.69 × 562.29
  4. Step 4: Simplify right side
    717.81x = 604,287.44
  5. Step 5: Solve for x
    x = 604,287.44/717.81
  6. Step 6: Final answer
    x = 841.85

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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.