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Finding the Fourth Proportional to 844.63, 1,165.19 and 549.79

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Solution

The fourth proportional to 844.63, 1,165.19 and 549.79 is: 758.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.63 : 1,165.19 = 549.79 : x
  2. Step 2: Convert to fraction form
    844.63/1,165.19 = 549.79/x
  3. Step 3: Cross multiply
    844.63x = 1,165.19 × 549.79
  4. Step 4: Simplify right side
    844.63x = 640,609.81
  5. Step 5: Solve for x
    x = 640,609.81/844.63
  6. Step 6: Final answer
    x = 758.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.