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Finding the Fourth Proportional to 324,755.40, 486,614.70 and 271,878.60

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Solution

The fourth proportional to 324,755.40, 486,614.70 and 271,878.60 is: 407,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,755.40 : 486,614.70 = 271,878.60 : x
  2. Step 2: Convert to fraction form
    324,755.40/486,614.70 = 271,878.60/x
  3. Step 3: Cross multiply
    324,755.40x = 486,614.70 × 271,878.60
  4. Step 4: Simplify right side
    324,755.40x = 132,300,123,375.42
  5. Step 5: Solve for x
    x = 132,300,123,375.42/324,755.40
  6. Step 6: Final answer
    x = 407,383.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.