Home / 1,208,422.67-1,667,585.11-664,556.78

Finding the Fourth Proportional to 1,208,422.67, 1,667,585.11 and 664,556.78

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Solution

The fourth proportional to 1,208,422.67, 1,667,585.11 and 664,556.78 is: 917,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,422.67 : 1,667,585.11 = 664,556.78 : x
  2. Step 2: Convert to fraction form
    1,208,422.67/1,667,585.11 = 664,556.78/x
  3. Step 3: Cross multiply
    1,208,422.67x = 1,667,585.11 × 664,556.78
  4. Step 4: Simplify right side
    1,208,422.67x = 1,108,204,991,077.55
  5. Step 5: Solve for x
    x = 1,108,204,991,077.55/1,208,422.67
  6. Step 6: Final answer
    x = 917,067.36

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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.