Home / 1,987,812.10-2,743,105.86-1,214,735.62

Finding the Fourth Proportional to 1,987,812.10, 2,743,105.86 and 1,214,735.62

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Solution

The fourth proportional to 1,987,812.10, 2,743,105.86 and 1,214,735.62 is: 1,676,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,812.10 : 2,743,105.86 = 1,214,735.62 : x
  2. Step 2: Convert to fraction form
    1,987,812.10/2,743,105.86 = 1,214,735.62/x
  3. Step 3: Cross multiply
    1,987,812.10x = 2,743,105.86 × 1,214,735.62
  4. Step 4: Simplify right side
    1,987,812.10x = 3,332,148,397,572.73
  5. Step 5: Solve for x
    x = 3,332,148,397,572.73/1,987,812.10
  6. Step 6: Final answer
    x = 1,676,289.42

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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.