Home / 451,471.20-677,212.56-311,192.16

Finding the Fourth Proportional to 451,471.20, 677,212.56 and 311,192.16

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Solution

The fourth proportional to 451,471.20, 677,212.56 and 311,192.16 is: 466,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,471.20 : 677,212.56 = 311,192.16 : x
  2. Step 2: Convert to fraction form
    451,471.20/677,212.56 = 311,192.16/x
  3. Step 3: Cross multiply
    451,471.20x = 677,212.56 × 311,192.16
  4. Step 4: Simplify right side
    451,471.20x = 210,743,239,325.53
  5. Step 5: Solve for x
    x = 210,743,239,325.53/451,471.20
  6. Step 6: Final answer
    x = 466,792.21

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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.