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Finding the Fourth Proportional to 664,358.72, 996,906.72 and 270,344

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Solution

The fourth proportional to 664,358.72, 996,906.72 and 270,344 is: 405,666.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,358.72 : 996,906.72 = 270,344 : x
  2. Step 2: Convert to fraction form
    664,358.72/996,906.72 = 270,344/x
  3. Step 3: Cross multiply
    664,358.72x = 996,906.72 × 270,344
  4. Step 4: Simplify right side
    664,358.72x = 269,507,750,311.68
  5. Step 5: Solve for x
    x = 269,507,750,311.68/664,358.72
  6. Step 6: Final answer
    x = 405,666.01

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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.