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Finding the Fourth Proportional to 394,609.28, 544,588.60 and 222,542.64

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Solution

The fourth proportional to 394,609.28, 544,588.60 and 222,542.64 is: 307,124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,609.28 : 544,588.60 = 222,542.64 : x
  2. Step 2: Convert to fraction form
    394,609.28/544,588.60 = 222,542.64/x
  3. Step 3: Cross multiply
    394,609.28x = 544,588.60 × 222,542.64
  4. Step 4: Simplify right side
    394,609.28x = 121,194,184,757.90
  5. Step 5: Solve for x
    x = 121,194,184,757.90/394,609.28
  6. Step 6: Final answer
    x = 307,124.52

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1.5x scale

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.