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Finding the Fourth Proportional to 703,517.88, 970,902.30 and 397,488.12

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Solution

The fourth proportional to 703,517.88, 970,902.30 and 397,488.12 is: 548,560.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,517.88 : 970,902.30 = 397,488.12 : x
  2. Step 2: Convert to fraction form
    703,517.88/970,902.30 = 397,488.12/x
  3. Step 3: Cross multiply
    703,517.88x = 970,902.30 × 397,488.12
  4. Step 4: Simplify right side
    703,517.88x = 385,922,129,930.68
  5. Step 5: Solve for x
    x = 385,922,129,930.68/703,517.88
  6. Step 6: Final answer
    x = 548,560.51

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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.