Home / 481,541.20-664,637.44-320,403.04

Finding the Fourth Proportional to 481,541.20, 664,637.44 and 320,403.04

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Solution

The fourth proportional to 481,541.20, 664,637.44 and 320,403.04 is: 442,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,541.20 : 664,637.44 = 320,403.04 : x
  2. Step 2: Convert to fraction form
    481,541.20/664,637.44 = 320,403.04/x
  3. Step 3: Cross multiply
    481,541.20x = 664,637.44 × 320,403.04
  4. Step 4: Simplify right side
    481,541.20x = 212,951,856,273.82
  5. Step 5: Solve for x
    x = 212,951,856,273.82/481,541.20
  6. Step 6: Final answer
    x = 442,229.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.