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Finding the Fourth Proportional to 1,044.30, 1,441.12 and 578.55

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Solution

The fourth proportional to 1,044.30, 1,441.12 and 578.55 is: 798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.30 : 1,441.12 = 578.55 : x
  2. Step 2: Convert to fraction form
    1,044.30/1,441.12 = 578.55/x
  3. Step 3: Cross multiply
    1,044.30x = 1,441.12 × 578.55
  4. Step 4: Simplify right side
    1,044.30x = 833,759.98
  5. Step 5: Solve for x
    x = 833,759.98/1,044.30
  6. Step 6: Final answer
    x = 798.39

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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.