Home / 543,906.39-815,736.56-206,826.84

Finding the Fourth Proportional to 543,906.39, 815,736.56 and 206,826.84

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Solution

The fourth proportional to 543,906.39, 815,736.56 and 206,826.84 is: 310,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,906.39 : 815,736.56 = 206,826.84 : x
  2. Step 2: Convert to fraction form
    543,906.39/815,736.56 = 206,826.84/x
  3. Step 3: Cross multiply
    543,906.39x = 815,736.56 × 206,826.84
  4. Step 4: Simplify right side
    543,906.39x = 168,716,213,943.14
  5. Step 5: Solve for x
    x = 168,716,213,943.14/543,906.39
  6. Step 6: Final answer
    x = 310,193.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.