Home / 453,121.20-679,098.60-275,439.60

Finding the Fourth Proportional to 453,121.20, 679,098.60 and 275,439.60

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Solution

The fourth proportional to 453,121.20, 679,098.60 and 275,439.60 is: 412,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,121.20 : 679,098.60 = 275,439.60 : x
  2. Step 2: Convert to fraction form
    453,121.20/679,098.60 = 275,439.60/x
  3. Step 3: Cross multiply
    453,121.20x = 679,098.60 × 275,439.60
  4. Step 4: Simplify right side
    453,121.20x = 187,050,646,744.56
  5. Step 5: Solve for x
    x = 187,050,646,744.56/453,121.20
  6. Step 6: Final answer
    x = 412,804.89

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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.