Home / 543,972.28-815,375.06-263,103.16

Finding the Fourth Proportional to 543,972.28, 815,375.06 and 263,103.16

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Solution

The fourth proportional to 543,972.28, 815,375.06 and 263,103.16 is: 394,372.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,972.28 : 815,375.06 = 263,103.16 : x
  2. Step 2: Convert to fraction form
    543,972.28/815,375.06 = 263,103.16/x
  3. Step 3: Cross multiply
    543,972.28x = 815,375.06 × 263,103.16
  4. Step 4: Simplify right side
    543,972.28x = 214,527,754,871.19
  5. Step 5: Solve for x
    x = 214,527,754,871.19/543,972.28
  6. Step 6: Final answer
    x = 394,372.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.