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Finding the Fourth Proportional to 774.06, 1,067.69 and 747.33

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Solution

The fourth proportional to 774.06, 1,067.69 and 747.33 is: 1,030.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    774.06 : 1,067.69 = 747.33 : x
  2. Step 2: Convert to fraction form
    774.06/1,067.69 = 747.33/x
  3. Step 3: Cross multiply
    774.06x = 1,067.69 × 747.33
  4. Step 4: Simplify right side
    774.06x = 797,913.03
  5. Step 5: Solve for x
    x = 797,913.03/774.06
  6. Step 6: Final answer
    x = 1,030.82

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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.