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Finding the Fourth Proportional to 394,519.62, 544,409.73 and 222,443.70

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Solution

The fourth proportional to 394,519.62, 544,409.73 and 222,443.70 is: 306,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,519.62 : 544,409.73 = 222,443.70 : x
  2. Step 2: Convert to fraction form
    394,519.62/544,409.73 = 222,443.70/x
  3. Step 3: Cross multiply
    394,519.62x = 544,409.73 × 222,443.70
  4. Step 4: Simplify right side
    394,519.62x = 121,100,514,657.20
  5. Step 5: Solve for x
    x = 121,100,514,657.20/394,519.62
  6. Step 6: Final answer
    x = 306,956.89

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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.