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Finding the Fourth Proportional to 1,044.56, 1,441.53 and 578.81

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Solution

The fourth proportional to 1,044.56, 1,441.53 and 578.81 is: 798.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.56 : 1,441.53 = 578.81 : x
  2. Step 2: Convert to fraction form
    1,044.56/1,441.53 = 578.81/x
  3. Step 3: Cross multiply
    1,044.56x = 1,441.53 × 578.81
  4. Step 4: Simplify right side
    1,044.56x = 834,375.58
  5. Step 5: Solve for x
    x = 834,375.58/1,044.56
  6. Step 6: Final answer
    x = 798.78

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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.