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Finding the Fourth Proportional to 773.51, 1,067.26 and 458.62

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Solution

The fourth proportional to 773.51, 1,067.26 and 458.62 is: 632.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    773.51 : 1,067.26 = 458.62 : x
  2. Step 2: Convert to fraction form
    773.51/1,067.26 = 458.62/x
  3. Step 3: Cross multiply
    773.51x = 1,067.26 × 458.62
  4. Step 4: Simplify right side
    773.51x = 489,466.78
  5. Step 5: Solve for x
    x = 489,466.78/773.51
  6. Step 6: Final answer
    x = 632.79

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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.