Home / 412,721.76-619,257.60-225,514.56

Finding the Fourth Proportional to 412,721.76, 619,257.60 and 225,514.56

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Solution

The fourth proportional to 412,721.76, 619,257.60 and 225,514.56 is: 338,367.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,721.76 : 619,257.60 = 225,514.56 : x
  2. Step 2: Convert to fraction form
    412,721.76/619,257.60 = 225,514.56/x
  3. Step 3: Cross multiply
    412,721.76x = 619,257.60 × 225,514.56
  4. Step 4: Simplify right side
    412,721.76x = 139,651,605,190.66
  5. Step 5: Solve for x
    x = 139,651,605,190.66/412,721.76
  6. Step 6: Final answer
    x = 338,367.44

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1.5x scale

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.