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Finding the Fourth Proportional to 844.02, 1,165.59 and 549.18

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Solution

The fourth proportional to 844.02, 1,165.59 and 549.18 is: 758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.02 : 1,165.59 = 549.18 : x
  2. Step 2: Convert to fraction form
    844.02/1,165.59 = 549.18/x
  3. Step 3: Cross multiply
    844.02x = 1,165.59 × 549.18
  4. Step 4: Simplify right side
    844.02x = 640,118.72
  5. Step 5: Solve for x
    x = 640,118.72/844.02
  6. Step 6: Final answer
    x = 758.42

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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.