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Finding the Fourth Proportional to 682,382.56, 941,383.68 and 395,736.80

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Solution

The fourth proportional to 682,382.56, 941,383.68 and 395,736.80 is: 545,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,382.56 : 941,383.68 = 395,736.80 : x
  2. Step 2: Convert to fraction form
    682,382.56/941,383.68 = 395,736.80/x
  3. Step 3: Cross multiply
    682,382.56x = 941,383.68 × 395,736.80
  4. Step 4: Simplify right side
    682,382.56x = 372,540,165,095.42
  5. Step 5: Solve for x
    x = 372,540,165,095.42/682,382.56
  6. Step 6: Final answer
    x = 545,940.34

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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.