Home / 679,296.33-1,019,067.48-279,719.19

Finding the Fourth Proportional to 679,296.33, 1,019,067.48 and 279,719.19

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Solution

The fourth proportional to 679,296.33, 1,019,067.48 and 279,719.19 is: 419,629.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,296.33 : 1,019,067.48 = 279,719.19 : x
  2. Step 2: Convert to fraction form
    679,296.33/1,019,067.48 = 279,719.19/x
  3. Step 3: Cross multiply
    679,296.33x = 1,019,067.48 × 279,719.19
  4. Step 4: Simplify right side
    679,296.33x = 285,052,730,060.94
  5. Step 5: Solve for x
    x = 285,052,730,060.94/679,296.33
  6. Step 6: Final answer
    x = 419,629.43

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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.