Home / 664,526.20-996,935.10-215,170.60

Finding the Fourth Proportional to 664,526.20, 996,935.10 and 215,170.60

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Solution

The fourth proportional to 664,526.20, 996,935.10 and 215,170.60 is: 322,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,526.20 : 996,935.10 = 215,170.60 : x
  2. Step 2: Convert to fraction form
    664,526.20/996,935.10 = 215,170.60/x
  3. Step 3: Cross multiply
    664,526.20x = 996,935.10 × 215,170.60
  4. Step 4: Simplify right side
    664,526.20x = 214,511,123,628.06
  5. Step 5: Solve for x
    x = 214,511,123,628.06/664,526.20
  6. Step 6: Final answer
    x = 322,803.11

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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.