Home / 1,929,121.40-2,662,057.77-1,069,649.84

Finding the Fourth Proportional to 1,929,121.40, 2,662,057.77 and 1,069,649.84

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Solution

The fourth proportional to 1,929,121.40, 2,662,057.77 and 1,069,649.84 is: 1,476,044.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,121.40 : 2,662,057.77 = 1,069,649.84 : x
  2. Step 2: Convert to fraction form
    1,929,121.40/2,662,057.77 = 1,069,649.84/x
  3. Step 3: Cross multiply
    1,929,121.40x = 2,662,057.77 × 1,069,649.84
  4. Step 4: Simplify right side
    1,929,121.40x = 2,847,469,667,751.26
  5. Step 5: Solve for x
    x = 2,847,469,667,751.26/1,929,121.40
  6. Step 6: Final answer
    x = 1,476,044.83

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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.