Home / 1,216,891.40-1,821,837.90-1,181,899.40

Finding the Fourth Proportional to 1,216,891.40, 1,821,837.90 and 1,181,899.40

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Solution

The fourth proportional to 1,216,891.40, 1,821,837.90 and 1,181,899.40 is: 1,769,450.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,891.40 : 1,821,837.90 = 1,181,899.40 : x
  2. Step 2: Convert to fraction form
    1,216,891.40/1,821,837.90 = 1,181,899.40/x
  3. Step 3: Cross multiply
    1,216,891.40x = 1,821,837.90 × 1,181,899.40
  4. Step 4: Simplify right side
    1,216,891.40x = 2,153,229,120,907.26
  5. Step 5: Solve for x
    x = 2,153,229,120,907.26/1,216,891.40
  6. Step 6: Final answer
    x = 1,769,450.52

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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.