Home / 481,478.36-722,215.76-144,517.55

Finding the Fourth Proportional to 481,478.36, 722,215.76 and 144,517.55

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Solution

The fourth proportional to 481,478.36, 722,215.76 and 144,517.55 is: 216,775.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,478.36 : 722,215.76 = 144,517.55 : x
  2. Step 2: Convert to fraction form
    481,478.36/722,215.76 = 144,517.55/x
  3. Step 3: Cross multiply
    481,478.36x = 722,215.76 × 144,517.55
  4. Step 4: Simplify right side
    481,478.36x = 104,372,847,872.92
  5. Step 5: Solve for x
    x = 104,372,847,872.92/481,478.36
  6. Step 6: Final answer
    x = 216,775.78

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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.