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Finding the Fourth Proportional to 773.27, 1,067.10 and 441.70

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Solution

The fourth proportional to 773.27, 1,067.10 and 441.70 is: 609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.27 : 1,067.10 = 441.70 : x
  2. Step 2: Convert to fraction form
    773.27/1,067.10 = 441.70/x
  3. Step 3: Cross multiply
    773.27x = 1,067.10 × 441.70
  4. Step 4: Simplify right side
    773.27x = 471,338.07
  5. Step 5: Solve for x
    x = 471,338.07/773.27
  6. Step 6: Final answer
    x = 609.54

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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.