Home / 411,731.20-617,625.60-162,380.80

Finding the Fourth Proportional to 411,731.20, 617,625.60 and 162,380.80

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Solution

The fourth proportional to 411,731.20, 617,625.60 and 162,380.80 is: 243,582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,731.20 : 617,625.60 = 162,380.80 : x
  2. Step 2: Convert to fraction form
    411,731.20/617,625.60 = 162,380.80/x
  3. Step 3: Cross multiply
    411,731.20x = 617,625.60 × 162,380.80
  4. Step 4: Simplify right side
    411,731.20x = 100,290,539,028.48
  5. Step 5: Solve for x
    x = 100,290,539,028.48/411,731.20
  6. Step 6: Final answer
    x = 243,582.56

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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.