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Finding the Fourth Proportional to 547,906.88, 755,622 and 343,976.83

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Solution

The fourth proportional to 547,906.88, 755,622 and 343,976.83 is: 474,380.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,906.88 : 755,622 = 343,976.83 : x
  2. Step 2: Convert to fraction form
    547,906.88/755,622 = 343,976.83/x
  3. Step 3: Cross multiply
    547,906.88x = 755,622 × 343,976.83
  4. Step 4: Simplify right side
    547,906.88x = 259,916,458,349.21
  5. Step 5: Solve for x
    x = 259,916,458,349.21/547,906.88
  6. Step 6: Final answer
    x = 474,380.71

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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.