Home / 1,191,979.80-1,787,794.74-481,992.12

Finding the Fourth Proportional to 1,191,979.80, 1,787,794.74 and 481,992.12

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Solution

The fourth proportional to 1,191,979.80, 1,787,794.74 and 481,992.12 is: 722,917.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,979.80 : 1,787,794.74 = 481,992.12 : x
  2. Step 2: Convert to fraction form
    1,191,979.80/1,787,794.74 = 481,992.12/x
  3. Step 3: Cross multiply
    1,191,979.80x = 1,787,794.74 × 481,992.12
  4. Step 4: Simplify right side
    1,191,979.80x = 861,702,976,857.45
  5. Step 5: Solve for x
    x = 861,702,976,857.45/1,191,979.80
  6. Step 6: Final answer
    x = 722,917.43

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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.