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Finding the Fourth Proportional to 2,786,287.97, 4,179,819.41 and 988,744.14

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Solution

The fourth proportional to 2,786,287.97, 4,179,819.41 and 988,744.14 is: 1,483,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,287.97 : 4,179,819.41 = 988,744.14 : x
  2. Step 2: Convert to fraction form
    2,786,287.97/4,179,819.41 = 988,744.14/x
  3. Step 3: Cross multiply
    2,786,287.97x = 4,179,819.41 × 988,744.14
  4. Step 4: Simplify right side
    2,786,287.97x = 4,132,771,942,952.04
  5. Step 5: Solve for x
    x = 4,132,771,942,952.04/2,786,287.97
  6. Step 6: Final answer
    x = 1,483,253.70

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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.