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Finding the Fourth Proportional to 844.66, 1,269.69 and 801.46

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Solution

The fourth proportional to 844.66, 1,269.69 and 801.46 is: 1,204.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.66 : 1,269.69 = 801.46 : x
  2. Step 2: Convert to fraction form
    844.66/1,269.69 = 801.46/x
  3. Step 3: Cross multiply
    844.66x = 1,269.69 × 801.46
  4. Step 4: Simplify right side
    844.66x = 1,017,605.75
  5. Step 5: Solve for x
    x = 1,017,605.75/844.66
  6. Step 6: Final answer
    x = 1,204.75

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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.