Home / 1,389,067.52-2,084,249.64-491,189.36

Finding the Fourth Proportional to 1,389,067.52, 2,084,249.64 and 491,189.36

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Solution

The fourth proportional to 1,389,067.52, 2,084,249.64 and 491,189.36 is: 737,013.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,067.52 : 2,084,249.64 = 491,189.36 : x
  2. Step 2: Convert to fraction form
    1,389,067.52/2,084,249.64 = 491,189.36/x
  3. Step 3: Cross multiply
    1,389,067.52x = 2,084,249.64 × 491,189.36
  4. Step 4: Simplify right side
    1,389,067.52x = 1,023,761,246,751.83
  5. Step 5: Solve for x
    x = 1,023,761,246,751.83/1,389,067.52
  6. Step 6: Final answer
    x = 737,013.31

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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.