Home / 1,309,556.87-1,960,685.60-668,481.56

Finding the Fourth Proportional to 1,309,556.87, 1,960,685.60 and 668,481.56

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Solution

The fourth proportional to 1,309,556.87, 1,960,685.60 and 668,481.56 is: 1,000,859.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,556.87 : 1,960,685.60 = 668,481.56 : x
  2. Step 2: Convert to fraction form
    1,309,556.87/1,960,685.60 = 668,481.56/x
  3. Step 3: Cross multiply
    1,309,556.87x = 1,960,685.60 × 668,481.56
  4. Step 4: Simplify right side
    1,309,556.87x = 1,310,682,162,764.27
  5. Step 5: Solve for x
    x = 1,310,682,162,764.27/1,309,556.87
  6. Step 6: Final answer
    x = 1,000,859.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.