Home / 664,401.32-996,760.76-215,122.70

Finding the Fourth Proportional to 664,401.32, 996,760.76 and 215,122.70

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Solution

The fourth proportional to 664,401.32, 996,760.76 and 215,122.70 is: 322,735.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,401.32 : 996,760.76 = 215,122.70 : x
  2. Step 2: Convert to fraction form
    664,401.32/996,760.76 = 215,122.70/x
  3. Step 3: Cross multiply
    664,401.32x = 996,760.76 × 215,122.70
  4. Step 4: Simplify right side
    664,401.32x = 214,425,867,361.54
  5. Step 5: Solve for x
    x = 214,425,867,361.54/664,401.32
  6. Step 6: Final answer
    x = 322,735.46

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1.5x scale

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.