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Finding the Fourth Proportional to 703,472.78, 970,734.92 and 397,575.38

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Solution

The fourth proportional to 703,472.78, 970,734.92 and 397,575.38 is: 548,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,472.78 : 970,734.92 = 397,575.38 : x
  2. Step 2: Convert to fraction form
    703,472.78/970,734.92 = 397,575.38/x
  3. Step 3: Cross multiply
    703,472.78x = 970,734.92 × 397,575.38
  4. Step 4: Simplify right side
    703,472.78x = 385,940,304,698.27
  5. Step 5: Solve for x
    x = 385,940,304,698.27/703,472.78
  6. Step 6: Final answer
    x = 548,621.52

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1.5x scale

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.