Home / 664,680.01-996,921.46-215,440.51

Finding the Fourth Proportional to 664,680.01, 996,921.46 and 215,440.51

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Solution

The fourth proportional to 664,680.01, 996,921.46 and 215,440.51 is: 323,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,680.01 : 996,921.46 = 215,440.51 : x
  2. Step 2: Convert to fraction form
    664,680.01/996,921.46 = 215,440.51/x
  3. Step 3: Cross multiply
    664,680.01x = 996,921.46 × 215,440.51
  4. Step 4: Simplify right side
    664,680.01x = 214,777,267,772.35
  5. Step 5: Solve for x
    x = 214,777,267,772.35/664,680.01
  6. Step 6: Final answer
    x = 323,128.82

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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.