Home / 1,202,911.82-1,659,992.90-659,021.12

Finding the Fourth Proportional to 1,202,911.82, 1,659,992.90 and 659,021.12

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Solution

The fourth proportional to 1,202,911.82, 1,659,992.90 and 659,021.12 is: 909,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,911.82 : 1,659,992.90 = 659,021.12 : x
  2. Step 2: Convert to fraction form
    1,202,911.82/1,659,992.90 = 659,021.12/x
  3. Step 3: Cross multiply
    1,202,911.82x = 1,659,992.90 × 659,021.12
  4. Step 4: Simplify right side
    1,202,911.82x = 1,093,970,380,150.05
  5. Step 5: Solve for x
    x = 1,093,970,380,150.05/1,202,911.82
  6. Step 6: Final answer
    x = 909,435.22

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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.