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Finding the Fourth Proportional to 635.73, 876.63 and 547.47

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Solution

The fourth proportional to 635.73, 876.63 and 547.47 is: 754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    635.73 : 876.63 = 547.47 : x
  2. Step 2: Convert to fraction form
    635.73/876.63 = 547.47/x
  3. Step 3: Cross multiply
    635.73x = 876.63 × 547.47
  4. Step 4: Simplify right side
    635.73x = 479,928.63
  5. Step 5: Solve for x
    x = 479,928.63/635.73
  6. Step 6: Final answer
    x = 754.93

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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.