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Finding the Fourth Proportional to 451,357.92, 622,653.48 and 379,711.80

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Solution

The fourth proportional to 451,357.92, 622,653.48 and 379,711.80 is: 523,816.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,357.92 : 622,653.48 = 379,711.80 : x
  2. Step 2: Convert to fraction form
    451,357.92/622,653.48 = 379,711.80/x
  3. Step 3: Cross multiply
    451,357.92x = 622,653.48 × 379,711.80
  4. Step 4: Simplify right side
    451,357.92x = 236,428,873,667.06
  5. Step 5: Solve for x
    x = 236,428,873,667.06/451,357.92
  6. Step 6: Final answer
    x = 523,816.83

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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.