Home / 681,842.63-1,022,599.92-208,532.09

Finding the Fourth Proportional to 681,842.63, 1,022,599.92 and 208,532.09

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Solution

The fourth proportional to 681,842.63, 1,022,599.92 and 208,532.09 is: 312,747.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,842.63 : 1,022,599.92 = 208,532.09 : x
  2. Step 2: Convert to fraction form
    681,842.63/1,022,599.92 = 208,532.09/x
  3. Step 3: Cross multiply
    681,842.63x = 1,022,599.92 × 208,532.09
  4. Step 4: Simplify right side
    681,842.63x = 213,244,901,107.93
  5. Step 5: Solve for x
    x = 213,244,901,107.93/681,842.63
  6. Step 6: Final answer
    x = 312,747.97

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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.