Home / 394,839.87-544,879.10-222,794.35

Finding the Fourth Proportional to 394,839.87, 544,879.10 and 222,794.35

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Solution

The fourth proportional to 394,839.87, 544,879.10 and 222,794.35 is: 307,456.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,839.87 : 544,879.10 = 222,794.35 : x
  2. Step 2: Convert to fraction form
    394,839.87/544,879.10 = 222,794.35/x
  3. Step 3: Cross multiply
    394,839.87x = 544,879.10 × 222,794.35
  4. Step 4: Simplify right side
    394,839.87x = 121,395,984,913.09
  5. Step 5: Solve for x
    x = 121,395,984,913.09/394,839.87
  6. Step 6: Final answer
    x = 307,456.25

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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.