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Finding the Fourth Proportional to 844.42, 1,165.28 and 550.24

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Solution

The fourth proportional to 844.42, 1,165.28 and 550.24 is: 759.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.42 : 1,165.28 = 550.24 : x
  2. Step 2: Convert to fraction form
    844.42/1,165.28 = 550.24/x
  3. Step 3: Cross multiply
    844.42x = 1,165.28 × 550.24
  4. Step 4: Simplify right side
    844.42x = 641,183.67
  5. Step 5: Solve for x
    x = 641,183.67/844.42
  6. Step 6: Final answer
    x = 759.32

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Double scale
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1.5x scale

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.