Home / 1,287,854.80-1,933,625.40-727,982.80

Finding the Fourth Proportional to 1,287,854.80, 1,933,625.40 and 727,982.80

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Solution

The fourth proportional to 1,287,854.80, 1,933,625.40 and 727,982.80 is: 1,093,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,854.80 : 1,933,625.40 = 727,982.80 : x
  2. Step 2: Convert to fraction form
    1,287,854.80/1,933,625.40 = 727,982.80/x
  3. Step 3: Cross multiply
    1,287,854.80x = 1,933,625.40 × 727,982.80
  4. Step 4: Simplify right side
    1,287,854.80x = 1,407,646,032,843.12
  5. Step 5: Solve for x
    x = 1,407,646,032,843.12/1,287,854.80
  6. Step 6: Final answer
    x = 1,093,016.10

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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.