Home / 664,371.30-996,654.15-215,015.70

Finding the Fourth Proportional to 664,371.30, 996,654.15 and 215,015.70

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Solution

The fourth proportional to 664,371.30, 996,654.15 and 215,015.70 is: 322,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,371.30 : 996,654.15 = 215,015.70 : x
  2. Step 2: Convert to fraction form
    664,371.30/996,654.15 = 215,015.70/x
  3. Step 3: Cross multiply
    664,371.30x = 996,654.15 × 215,015.70
  4. Step 4: Simplify right side
    664,371.30x = 214,296,289,720.16
  5. Step 5: Solve for x
    x = 214,296,289,720.16/664,371.30
  6. Step 6: Final answer
    x = 322,555.01

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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.