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Finding the Fourth Proportional to 494,621.88, 682,516.14 and 293,379

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Solution

The fourth proportional to 494,621.88, 682,516.14 and 293,379 is: 404,826.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,621.88 : 682,516.14 = 293,379 : x
  2. Step 2: Convert to fraction form
    494,621.88/682,516.14 = 293,379/x
  3. Step 3: Cross multiply
    494,621.88x = 682,516.14 × 293,379
  4. Step 4: Simplify right side
    494,621.88x = 200,235,902,637.06
  5. Step 5: Solve for x
    x = 200,235,902,637.06/494,621.88
  6. Step 6: Final answer
    x = 404,826.21

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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.