Home / 1,620,976.55-2,236,999.09-885,914.70

Finding the Fourth Proportional to 1,620,976.55, 2,236,999.09 and 885,914.70

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Solution

The fourth proportional to 1,620,976.55, 2,236,999.09 and 885,914.70 is: 1,222,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,976.55 : 2,236,999.09 = 885,914.70 : x
  2. Step 2: Convert to fraction form
    1,620,976.55/2,236,999.09 = 885,914.70/x
  3. Step 3: Cross multiply
    1,620,976.55x = 2,236,999.09 × 885,914.70
  4. Step 4: Simplify right side
    1,620,976.55x = 1,981,790,377,717.62
  5. Step 5: Solve for x
    x = 1,981,790,377,717.62/1,620,976.55
  6. Step 6: Final answer
    x = 1,222,590.41

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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.