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Finding the Fourth Proportional to 844.98, 1,265.07 and 552.81

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Solution

The fourth proportional to 844.98, 1,265.07 and 552.81 is: 827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.98 : 1,265.07 = 552.81 : x
  2. Step 2: Convert to fraction form
    844.98/1,265.07 = 552.81/x
  3. Step 3: Cross multiply
    844.98x = 1,265.07 × 552.81
  4. Step 4: Simplify right side
    844.98x = 699,343.35
  5. Step 5: Solve for x
    x = 699,343.35/844.98
  6. Step 6: Final answer
    x = 827.64

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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.