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Finding the Fourth Proportional to 636.24, 949.20 and 566.99

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Solution

The fourth proportional to 636.24, 949.20 and 566.99 is: 845.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.24 : 949.20 = 566.99 : x
  2. Step 2: Convert to fraction form
    636.24/949.20 = 566.99/x
  3. Step 3: Cross multiply
    636.24x = 949.20 × 566.99
  4. Step 4: Simplify right side
    636.24x = 538,182.16
  5. Step 5: Solve for x
    x = 538,182.16/636.24
  6. Step 6: Final answer
    x = 845.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.