Home / 1,998,888.56-2,758,457.96-1,081,118.72

Finding the Fourth Proportional to 1,998,888.56, 2,758,457.96 and 1,081,118.72

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Solution

The fourth proportional to 1,998,888.56, 2,758,457.96 and 1,081,118.72 is: 1,491,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,888.56 : 2,758,457.96 = 1,081,118.72 : x
  2. Step 2: Convert to fraction form
    1,998,888.56/2,758,457.96 = 1,081,118.72/x
  3. Step 3: Cross multiply
    1,998,888.56x = 2,758,457.96 × 1,081,118.72
  4. Step 4: Simplify right side
    1,998,888.56x = 2,982,220,538,889.01
  5. Step 5: Solve for x
    x = 2,982,220,538,889.01/1,998,888.56
  6. Step 6: Final answer
    x = 1,491,939.37

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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.