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Finding the Fourth Proportional to 635.35, 876.11 and 436.47

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Solution

The fourth proportional to 635.35, 876.11 and 436.47 is: 601.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.35 : 876.11 = 436.47 : x
  2. Step 2: Convert to fraction form
    635.35/876.11 = 436.47/x
  3. Step 3: Cross multiply
    635.35x = 876.11 × 436.47
  4. Step 4: Simplify right side
    635.35x = 382,395.73
  5. Step 5: Solve for x
    x = 382,395.73/635.35
  6. Step 6: Final answer
    x = 601.87

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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.