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Finding the Fourth Proportional to 844.13, 1,164.80 and 512.60

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Solution

The fourth proportional to 844.13, 1,164.80 and 512.60 is: 707.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.13 : 1,164.80 = 512.60 : x
  2. Step 2: Convert to fraction form
    844.13/1,164.80 = 512.60/x
  3. Step 3: Cross multiply
    844.13x = 1,164.80 × 512.60
  4. Step 4: Simplify right side
    844.13x = 597,076.48
  5. Step 5: Solve for x
    x = 597,076.48/844.13
  6. Step 6: Final answer
    x = 707.33

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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.