Home / 494,546.72-682,487.48-279,718.52

Finding the Fourth Proportional to 494,546.72, 682,487.48 and 279,718.52

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Solution

The fourth proportional to 494,546.72, 682,487.48 and 279,718.52 is: 386,018.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,546.72 : 682,487.48 = 279,718.52 : x
  2. Step 2: Convert to fraction form
    494,546.72/682,487.48 = 279,718.52/x
  3. Step 3: Cross multiply
    494,546.72x = 682,487.48 × 279,718.52
  4. Step 4: Simplify right side
    494,546.72x = 190,904,387,824.13
  5. Step 5: Solve for x
    x = 190,904,387,824.13/494,546.72
  6. Step 6: Final answer
    x = 386,018.91

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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.