Home / 1,189,634.45-1,641,151.73-827,920.85

Finding the Fourth Proportional to 1,189,634.45, 1,641,151.73 and 827,920.85

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Solution

The fourth proportional to 1,189,634.45, 1,641,151.73 and 827,920.85 is: 1,142,152.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,634.45 : 1,641,151.73 = 827,920.85 : x
  2. Step 2: Convert to fraction form
    1,189,634.45/1,641,151.73 = 827,920.85/x
  3. Step 3: Cross multiply
    1,189,634.45x = 1,641,151.73 × 827,920.85
  4. Step 4: Simplify right side
    1,189,634.45x = 1,358,743,729,144.61
  5. Step 5: Solve for x
    x = 1,358,743,729,144.61/1,189,634.45
  6. Step 6: Final answer
    x = 1,142,152.31

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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.