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Finding the Fourth Proportional to 681.13, 1,022.08 and 566.95

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Solution

The fourth proportional to 681.13, 1,022.08 and 566.95 is: 850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.13 : 1,022.08 = 566.95 : x
  2. Step 2: Convert to fraction form
    681.13/1,022.08 = 566.95/x
  3. Step 3: Cross multiply
    681.13x = 1,022.08 × 566.95
  4. Step 4: Simplify right side
    681.13x = 579,467.98
  5. Step 5: Solve for x
    x = 579,467.98/681.13
  6. Step 6: Final answer
    x = 850.75

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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.