Home / 454,876.20-682,314.30-419,446.80

Finding the Fourth Proportional to 454,876.20, 682,314.30 and 419,446.80

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Solution

The fourth proportional to 454,876.20, 682,314.30 and 419,446.80 is: 629,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,876.20 : 682,314.30 = 419,446.80 : x
  2. Step 2: Convert to fraction form
    454,876.20/682,314.30 = 419,446.80/x
  3. Step 3: Cross multiply
    454,876.20x = 682,314.30 × 419,446.80
  4. Step 4: Simplify right side
    454,876.20x = 286,194,549,729.24
  5. Step 5: Solve for x
    x = 286,194,549,729.24/454,876.20
  6. Step 6: Final answer
    x = 629,170.20

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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.