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Finding the Fourth Proportional to 1,524.78, 2,286.84 and 550.34

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Solution

The fourth proportional to 1,524.78, 2,286.84 and 550.34 is: 825.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,524.78 : 2,286.84 = 550.34 : x
  2. Step 2: Convert to fraction form
    1,524.78/2,286.84 = 550.34/x
  3. Step 3: Cross multiply
    1,524.78x = 2,286.84 × 550.34
  4. Step 4: Simplify right side
    1,524.78x = 1,258,539.53
  5. Step 5: Solve for x
    x = 1,258,539.53/1,524.78
  6. Step 6: Final answer
    x = 825.39

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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.