Home / 481,429.20-721,560.60-214,906.80

Finding the Fourth Proportional to 481,429.20, 721,560.60 and 214,906.80

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Solution

The fourth proportional to 481,429.20, 721,560.60 and 214,906.80 is: 322,099.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,429.20 : 721,560.60 = 214,906.80 : x
  2. Step 2: Convert to fraction form
    481,429.20/721,560.60 = 214,906.80/x
  3. Step 3: Cross multiply
    481,429.20x = 721,560.60 × 214,906.80
  4. Step 4: Simplify right side
    481,429.20x = 155,068,279,552.08
  5. Step 5: Solve for x
    x = 155,068,279,552.08/481,429.20
  6. Step 6: Final answer
    x = 322,099.86

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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.