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Finding the Fourth Proportional to 1,060.59, 1,463.61 and 667.62

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Solution

The fourth proportional to 1,060.59, 1,463.61 and 667.62 is: 921.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.59 : 1,463.61 = 667.62 : x
  2. Step 2: Convert to fraction form
    1,060.59/1,463.61 = 667.62/x
  3. Step 3: Cross multiply
    1,060.59x = 1,463.61 × 667.62
  4. Step 4: Simplify right side
    1,060.59x = 977,135.31
  5. Step 5: Solve for x
    x = 977,135.31/1,060.59
  6. Step 6: Final answer
    x = 921.31

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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.