Home / 1,815,279.75-2,505,771.38-1,427,082.39

Finding the Fourth Proportional to 1,815,279.75, 2,505,771.38 and 1,427,082.39

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Solution

The fourth proportional to 1,815,279.75, 2,505,771.38 and 1,427,082.39 is: 1,969,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,279.75 : 2,505,771.38 = 1,427,082.39 : x
  2. Step 2: Convert to fraction form
    1,815,279.75/2,505,771.38 = 1,427,082.39/x
  3. Step 3: Cross multiply
    1,815,279.75x = 2,505,771.38 × 1,427,082.39
  4. Step 4: Simplify right side
    1,815,279.75x = 3,575,942,213,331.70
  5. Step 5: Solve for x
    x = 3,575,942,213,331.70/1,815,279.75
  6. Step 6: Final answer
    x = 1,969,912.47

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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.