Home / 679,659.36-1,019,540.88-206,383.92

Finding the Fourth Proportional to 679,659.36, 1,019,540.88 and 206,383.92

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Solution

The fourth proportional to 679,659.36, 1,019,540.88 and 206,383.92 is: 309,591.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,659.36 : 1,019,540.88 = 206,383.92 : x
  2. Step 2: Convert to fraction form
    679,659.36/1,019,540.88 = 206,383.92/x
  3. Step 3: Cross multiply
    679,659.36x = 1,019,540.88 × 206,383.92
  4. Step 4: Simplify right side
    679,659.36x = 210,416,843,414.65
  5. Step 5: Solve for x
    x = 210,416,843,414.65/679,659.36
  6. Step 6: Final answer
    x = 309,591.62

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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.