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Finding the Fourth Proportional to 757.00, 1,044.69 and 442.21

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Solution

The fourth proportional to 757.00, 1,044.69 and 442.21 is: 610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    757.00 : 1,044.69 = 442.21 : x
  2. Step 2: Convert to fraction form
    757.00/1,044.69 = 442.21/x
  3. Step 3: Cross multiply
    757.00x = 1,044.69 × 442.21
  4. Step 4: Simplify right side
    757.00x = 461,970.15
  5. Step 5: Solve for x
    x = 461,970.15/757.00
  6. Step 6: Final answer
    x = 610.27

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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.