Home / 1,226,618.80-1,839,272.10-515,843.80

Finding the Fourth Proportional to 1,226,618.80, 1,839,272.10 and 515,843.80

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Solution

The fourth proportional to 1,226,618.80, 1,839,272.10 and 515,843.80 is: 773,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,618.80 : 1,839,272.10 = 515,843.80 : x
  2. Step 2: Convert to fraction form
    1,226,618.80/1,839,272.10 = 515,843.80/x
  3. Step 3: Cross multiply
    1,226,618.80x = 1,839,272.10 × 515,843.80
  4. Step 4: Simplify right side
    1,226,618.80x = 948,777,109,297.98
  5. Step 5: Solve for x
    x = 948,777,109,297.98/1,226,618.80
  6. Step 6: Final answer
    x = 773,489.78

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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.