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Finding the Fourth Proportional to 1,044.47, 1,441.40 and 625.07

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Solution

The fourth proportional to 1,044.47, 1,441.40 and 625.07 is: 862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.47 : 1,441.40 = 625.07 : x
  2. Step 2: Convert to fraction form
    1,044.47/1,441.40 = 625.07/x
  3. Step 3: Cross multiply
    1,044.47x = 1,441.40 × 625.07
  4. Step 4: Simplify right side
    1,044.47x = 900,965.57
  5. Step 5: Solve for x
    x = 900,965.57/1,044.47
  6. Step 6: Final answer
    x = 862.61

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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.