Home / 1,412,992-1,949,928.96-809,418.88

Finding the Fourth Proportional to 1,412,992, 1,949,928.96 and 809,418.88

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Solution

The fourth proportional to 1,412,992, 1,949,928.96 and 809,418.88 is: 1,116,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,992 : 1,949,928.96 = 809,418.88 : x
  2. Step 2: Convert to fraction form
    1,412,992/1,949,928.96 = 809,418.88/x
  3. Step 3: Cross multiply
    1,412,992x = 1,949,928.96 × 809,418.88
  4. Step 4: Simplify right side
    1,412,992x = 1,578,309,314,882.77
  5. Step 5: Solve for x
    x = 1,578,309,314,882.77/1,412,992
  6. Step 6: Final answer
    x = 1,116,998.05

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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.