Home / 1,231,427.20-1,843,641.60-1,091,459.20

Finding the Fourth Proportional to 1,231,427.20, 1,843,641.60 and 1,091,459.20

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Solution

The fourth proportional to 1,231,427.20, 1,843,641.60 and 1,091,459.20 is: 1,634,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,427.20 : 1,843,641.60 = 1,091,459.20 : x
  2. Step 2: Convert to fraction form
    1,231,427.20/1,843,641.60 = 1,091,459.20/x
  3. Step 3: Cross multiply
    1,231,427.20x = 1,843,641.60 × 1,091,459.20
  4. Step 4: Simplify right side
    1,231,427.20x = 2,012,259,585,822.72
  5. Step 5: Solve for x
    x = 2,012,259,585,822.72/1,231,427.20
  6. Step 6: Final answer
    x = 1,634,087.33

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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.