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Finding the Fourth Proportional to 844.92, 1,266.46 and 433.48

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Solution

The fourth proportional to 844.92, 1,266.46 and 433.48 is: 649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.92 : 1,266.46 = 433.48 : x
  2. Step 2: Convert to fraction form
    844.92/1,266.46 = 433.48/x
  3. Step 3: Cross multiply
    844.92x = 1,266.46 × 433.48
  4. Step 4: Simplify right side
    844.92x = 548,985.08
  5. Step 5: Solve for x
    x = 548,985.08/844.92
  6. Step 6: Final answer
    x = 649.75

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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.