Home / 1,987,779.38-2,743,140.21-1,082,419.70

Finding the Fourth Proportional to 1,987,779.38, 2,743,140.21 and 1,082,419.70

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Solution

The fourth proportional to 1,987,779.38, 2,743,140.21 and 1,082,419.70 is: 1,493,741.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,779.38 : 2,743,140.21 = 1,082,419.70 : x
  2. Step 2: Convert to fraction form
    1,987,779.38/2,743,140.21 = 1,082,419.70/x
  3. Step 3: Cross multiply
    1,987,779.38x = 2,743,140.21 × 1,082,419.70
  4. Step 4: Simplify right side
    1,987,779.38x = 2,969,229,003,166.14
  5. Step 5: Solve for x
    x = 2,969,229,003,166.14/1,987,779.38
  6. Step 6: Final answer
    x = 1,493,741.73

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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.