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Finding the Fourth Proportional to 844.11, 1,164.60 and 549.45

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Solution

The fourth proportional to 844.11, 1,164.60 and 549.45 is: 758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.11 : 1,164.60 = 549.45 : x
  2. Step 2: Convert to fraction form
    844.11/1,164.60 = 549.45/x
  3. Step 3: Cross multiply
    844.11x = 1,164.60 × 549.45
  4. Step 4: Simplify right side
    844.11x = 639,889.47
  5. Step 5: Solve for x
    x = 639,889.47/844.11
  6. Step 6: Final answer
    x = 758.06

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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.