Home / 426,738.66-639,918.45-227,016.96

Finding the Fourth Proportional to 426,738.66, 639,918.45 and 227,016.96

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Solution

The fourth proportional to 426,738.66, 639,918.45 and 227,016.96 is: 340,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,738.66 : 639,918.45 = 227,016.96 : x
  2. Step 2: Convert to fraction form
    426,738.66/639,918.45 = 227,016.96/x
  3. Step 3: Cross multiply
    426,738.66x = 639,918.45 × 227,016.96
  4. Step 4: Simplify right side
    426,738.66x = 145,272,341,166.91
  5. Step 5: Solve for x
    x = 145,272,341,166.91/426,738.66
  6. Step 6: Final answer
    x = 340,424.61

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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.