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Finding the Fourth Proportional to 667.54, 995.42 and 576.82

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Solution

The fourth proportional to 667.54, 995.42 and 576.82 is: 860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.54 : 995.42 = 576.82 : x
  2. Step 2: Convert to fraction form
    667.54/995.42 = 576.82/x
  3. Step 3: Cross multiply
    667.54x = 995.42 × 576.82
  4. Step 4: Simplify right side
    667.54x = 574,178.16
  5. Step 5: Solve for x
    x = 574,178.16/667.54
  6. Step 6: Final answer
    x = 860.14

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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.