Home / 1,891,426.10-2,607,118.87-1,279,355.65

Finding the Fourth Proportional to 1,891,426.10, 2,607,118.87 and 1,279,355.65

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Solution

The fourth proportional to 1,891,426.10, 2,607,118.87 and 1,279,355.65 is: 1,763,448.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,426.10 : 2,607,118.87 = 1,279,355.65 : x
  2. Step 2: Convert to fraction form
    1,891,426.10/2,607,118.87 = 1,279,355.65/x
  3. Step 3: Cross multiply
    1,891,426.10x = 2,607,118.87 × 1,279,355.65
  4. Step 4: Simplify right side
    1,891,426.10x = 3,335,432,256,556.12
  5. Step 5: Solve for x
    x = 3,335,432,256,556.12/1,891,426.10
  6. Step 6: Final answer
    x = 1,763,448.36

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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.