Home / 449,003.43-619,731.09-258,127.74

Finding the Fourth Proportional to 449,003.43, 619,731.09 and 258,127.74

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Solution

The fourth proportional to 449,003.43, 619,731.09 and 258,127.74 is: 356,277.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,003.43 : 619,731.09 = 258,127.74 : x
  2. Step 2: Convert to fraction form
    449,003.43/619,731.09 = 258,127.74/x
  3. Step 3: Cross multiply
    449,003.43x = 619,731.09 × 258,127.74
  4. Step 4: Simplify right side
    449,003.43x = 159,969,785,669.44
  5. Step 5: Solve for x
    x = 159,969,785,669.44/449,003.43
  6. Step 6: Final answer
    x = 356,277.42

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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.