Home / 1,948,757.72-2,689,238.20-1,089,419

Finding the Fourth Proportional to 1,948,757.72, 2,689,238.20 and 1,089,419

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Solution

The fourth proportional to 1,948,757.72, 2,689,238.20 and 1,089,419 is: 1,503,371.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948,757.72 : 2,689,238.20 = 1,089,419 : x
  2. Step 2: Convert to fraction form
    1,948,757.72/2,689,238.20 = 1,089,419/x
  3. Step 3: Cross multiply
    1,948,757.72x = 2,689,238.20 × 1,089,419
  4. Step 4: Simplify right side
    1,948,757.72x = 2,929,707,190,605.80
  5. Step 5: Solve for x
    x = 2,929,707,190,605.80/1,948,757.72
  6. Step 6: Final answer
    x = 1,503,371.69

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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.