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Finding the Fourth Proportional to 547,977.60, 755,769.60 and 343,843.20

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Solution

The fourth proportional to 547,977.60, 755,769.60 and 343,843.20 is: 474,227.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,977.60 : 755,769.60 = 343,843.20 : x
  2. Step 2: Convert to fraction form
    547,977.60/755,769.60 = 343,843.20/x
  3. Step 3: Cross multiply
    547,977.60x = 755,769.60 × 343,843.20
  4. Step 4: Simplify right side
    547,977.60x = 259,866,237,726.72
  5. Step 5: Solve for x
    x = 259,866,237,726.72/547,977.60
  6. Step 6: Final answer
    x = 474,227.85

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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.