Home / 1,998,289.85-2,757,638.03-1,080,516.80

Finding the Fourth Proportional to 1,998,289.85, 2,757,638.03 and 1,080,516.80

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Solution

The fourth proportional to 1,998,289.85, 2,757,638.03 and 1,080,516.80 is: 1,491,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,289.85 : 2,757,638.03 = 1,080,516.80 : x
  2. Step 2: Convert to fraction form
    1,998,289.85/2,757,638.03 = 1,080,516.80/x
  3. Step 3: Cross multiply
    1,998,289.85x = 2,757,638.03 × 1,080,516.80
  4. Step 4: Simplify right side
    1,998,289.85x = 2,979,674,208,647.01
  5. Step 5: Solve for x
    x = 2,979,674,208,647.01/1,998,289.85
  6. Step 6: Final answer
    x = 1,491,112.12

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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.