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Finding the Fourth Proportional to 494,553.65, 682,512.82 and 276,760.49

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Solution

The fourth proportional to 494,553.65, 682,512.82 and 276,760.49 is: 381,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,553.65 : 682,512.82 = 276,760.49 : x
  2. Step 2: Convert to fraction form
    494,553.65/682,512.82 = 276,760.49/x
  3. Step 3: Cross multiply
    494,553.65x = 682,512.82 × 276,760.49
  4. Step 4: Simplify right side
    494,553.65x = 188,892,578,390.02
  5. Step 5: Solve for x
    x = 188,892,578,390.02/494,553.65
  6. Step 6: Final answer
    x = 381,945.58

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1.5x scale

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.