Home / 494,243.20-682,048.22-279,375.70

Finding the Fourth Proportional to 494,243.20, 682,048.22 and 279,375.70

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Solution

The fourth proportional to 494,243.20, 682,048.22 and 279,375.70 is: 385,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,243.20 : 682,048.22 = 279,375.70 : x
  2. Step 2: Convert to fraction form
    494,243.20/682,048.22 = 279,375.70/x
  3. Step 3: Cross multiply
    494,243.20x = 682,048.22 × 279,375.70
  4. Step 4: Simplify right side
    494,243.20x = 190,547,698,896.25
  5. Step 5: Solve for x
    x = 190,547,698,896.25/494,243.20
  6. Step 6: Final answer
    x = 385,534.29

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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.