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Finding the Fourth Proportional to 635.23, 873.57 and 552.43

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Solution

The fourth proportional to 635.23, 873.57 and 552.43 is: 759.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.23 : 873.57 = 552.43 : x
  2. Step 2: Convert to fraction form
    635.23/873.57 = 552.43/x
  3. Step 3: Cross multiply
    635.23x = 873.57 × 552.43
  4. Step 4: Simplify right side
    635.23x = 482,586.28
  5. Step 5: Solve for x
    x = 482,586.28/635.23
  6. Step 6: Final answer
    x = 759.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.