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Finding the Fourth Proportional to 635.85, 952.95 and 553.24

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Solution

The fourth proportional to 635.85, 952.95 and 553.24 is: 829.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.85 : 952.95 = 553.24 : x
  2. Step 2: Convert to fraction form
    635.85/952.95 = 553.24/x
  3. Step 3: Cross multiply
    635.85x = 952.95 × 553.24
  4. Step 4: Simplify right side
    635.85x = 527,213.32
  5. Step 5: Solve for x
    x = 527,213.32/635.85
  6. Step 6: Final answer
    x = 829.15

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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.