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Finding the Fourth Proportional to 844.26, 1,164.96 and 494.88

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Solution

The fourth proportional to 844.26, 1,164.96 and 494.88 is: 682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.26 : 1,164.96 = 494.88 : x
  2. Step 2: Convert to fraction form
    844.26/1,164.96 = 494.88/x
  3. Step 3: Cross multiply
    844.26x = 1,164.96 × 494.88
  4. Step 4: Simplify right side
    844.26x = 576,515.40
  5. Step 5: Solve for x
    x = 576,515.40/844.26
  6. Step 6: Final answer
    x = 682.86

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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.