Home / 1,188,918.30-1,781,015.42-655,115.34

Finding the Fourth Proportional to 1,188,918.30, 1,781,015.42 and 655,115.34

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Solution

The fourth proportional to 1,188,918.30, 1,781,015.42 and 655,115.34 is: 981,371.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,918.30 : 1,781,015.42 = 655,115.34 : x
  2. Step 2: Convert to fraction form
    1,188,918.30/1,781,015.42 = 655,115.34/x
  3. Step 3: Cross multiply
    1,188,918.30x = 1,781,015.42 × 655,115.34
  4. Step 4: Simplify right side
    1,188,918.30x = 1,166,770,522,418.54
  5. Step 5: Solve for x
    x = 1,166,770,522,418.54/1,188,918.30
  6. Step 6: Final answer
    x = 981,371.49

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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.