Home / 1,998,065.36-2,755,489.83-1,309,486.43

Finding the Fourth Proportional to 1,998,065.36, 2,755,489.83 and 1,309,486.43

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Solution

The fourth proportional to 1,998,065.36, 2,755,489.83 and 1,309,486.43 is: 1,805,885.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,065.36 : 2,755,489.83 = 1,309,486.43 : x
  2. Step 2: Convert to fraction form
    1,998,065.36/2,755,489.83 = 1,309,486.43/x
  3. Step 3: Cross multiply
    1,998,065.36x = 2,755,489.83 × 1,309,486.43
  4. Step 4: Simplify right side
    1,998,065.36x = 3,608,276,540,388.01
  5. Step 5: Solve for x
    x = 3,608,276,540,388.01/1,998,065.36
  6. Step 6: Final answer
    x = 1,805,885.14

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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.