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Finding the Fourth Proportional to 1,067.96, 1,602.15 and 605.96

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Solution

The fourth proportional to 1,067.96, 1,602.15 and 605.96 is: 909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.96 : 1,602.15 = 605.96 : x
  2. Step 2: Convert to fraction form
    1,067.96/1,602.15 = 605.96/x
  3. Step 3: Cross multiply
    1,067.96x = 1,602.15 × 605.96
  4. Step 4: Simplify right side
    1,067.96x = 970,830.80
  5. Step 5: Solve for x
    x = 970,830.80/1,067.96
  6. Step 6: Final answer
    x = 909.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.