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Finding the Fourth Proportional to 844.59, 1,267.31 and 474.17

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Solution

The fourth proportional to 844.59, 1,267.31 and 474.17 is: 711.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.59 : 1,267.31 = 474.17 : x
  2. Step 2: Convert to fraction form
    844.59/1,267.31 = 474.17/x
  3. Step 3: Cross multiply
    844.59x = 1,267.31 × 474.17
  4. Step 4: Simplify right side
    844.59x = 600,911.68
  5. Step 5: Solve for x
    x = 600,911.68/844.59
  6. Step 6: Final answer
    x = 711.48

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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.