Home / 664,520.20-996,926.10-215,164.60

Finding the Fourth Proportional to 664,520.20, 996,926.10 and 215,164.60

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Solution

The fourth proportional to 664,520.20, 996,926.10 and 215,164.60 is: 322,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,520.20 : 996,926.10 = 215,164.60 : x
  2. Step 2: Convert to fraction form
    664,520.20/996,926.10 = 215,164.60/x
  3. Step 3: Cross multiply
    664,520.20x = 996,926.10 × 215,164.60
  4. Step 4: Simplify right side
    664,520.20x = 214,503,205,536.06
  5. Step 5: Solve for x
    x = 214,503,205,536.06/664,520.20
  6. Step 6: Final answer
    x = 322,794.11

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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.