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Finding the Fourth Proportional to 844.89, 1,267.34 and 528.37

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Solution

The fourth proportional to 844.89, 1,267.34 and 528.37 is: 792.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.89 : 1,267.34 = 528.37 : x
  2. Step 2: Convert to fraction form
    844.89/1,267.34 = 528.37/x
  3. Step 3: Cross multiply
    844.89x = 1,267.34 × 528.37
  4. Step 4: Simplify right side
    844.89x = 669,624.44
  5. Step 5: Solve for x
    x = 669,624.44/844.89
  6. Step 6: Final answer
    x = 792.56

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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.