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Finding the Fourth Proportional to 796.48, 1,200.22 and 759.40

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Solution

The fourth proportional to 796.48, 1,200.22 and 759.40 is: 1,144.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.48 : 1,200.22 = 759.40 : x
  2. Step 2: Convert to fraction form
    796.48/1,200.22 = 759.40/x
  3. Step 3: Cross multiply
    796.48x = 1,200.22 × 759.40
  4. Step 4: Simplify right side
    796.48x = 911,447.07
  5. Step 5: Solve for x
    x = 911,447.07/796.48
  6. Step 6: Final answer
    x = 1,144.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.