Home / 1,227,878.13-1,682,201.21-1,181,856.51

Finding the Fourth Proportional to 1,227,878.13, 1,682,201.21 and 1,181,856.51

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Solution

The fourth proportional to 1,227,878.13, 1,682,201.21 and 1,181,856.51 is: 1,619,151.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,878.13 : 1,682,201.21 = 1,181,856.51 : x
  2. Step 2: Convert to fraction form
    1,227,878.13/1,682,201.21 = 1,181,856.51/x
  3. Step 3: Cross multiply
    1,227,878.13x = 1,682,201.21 × 1,181,856.51
  4. Step 4: Simplify right side
    1,227,878.13x = 1,988,120,445,259.09
  5. Step 5: Solve for x
    x = 1,988,120,445,259.09/1,227,878.13
  6. Step 6: Final answer
    x = 1,619,151.28

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.