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Finding the Fourth Proportional to 1,067.62, 1,472.12 and 773.04

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Solution

The fourth proportional to 1,067.62, 1,472.12 and 773.04 is: 1,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.62 : 1,472.12 = 773.04 : x
  2. Step 2: Convert to fraction form
    1,067.62/1,472.12 = 773.04/x
  3. Step 3: Cross multiply
    1,067.62x = 1,472.12 × 773.04
  4. Step 4: Simplify right side
    1,067.62x = 1,138,007.64
  5. Step 5: Solve for x
    x = 1,138,007.64/1,067.62
  6. Step 6: Final answer
    x = 1,065.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.