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Finding the Fourth Proportional to 394,782.94, 544,805.96 and 222,708.87

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Solution

The fourth proportional to 394,782.94, 544,805.96 and 222,708.87 is: 307,341.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,782.94 : 544,805.96 = 222,708.87 : x
  2. Step 2: Convert to fraction form
    394,782.94/544,805.96 = 222,708.87/x
  3. Step 3: Cross multiply
    394,782.94x = 544,805.96 × 222,708.87
  4. Step 4: Simplify right side
    394,782.94x = 121,333,119,720.87
  5. Step 5: Solve for x
    x = 121,333,119,720.87/394,782.94
  6. Step 6: Final answer
    x = 307,341.34

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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.