Home / 378,680-816,408

Finding the Third Proportional to 378,680 and 816,408

Calculator

Solution

The third proportional to 378,680 and 816,408 is: 1,760,119.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,680 : 816,408 = 816,408 : x
  2. Step 2: Convert to fraction form
    378,680/816,408 = 816,408/x
  3. Step 3: Cross multiply
    378,680x = 816,408 × 816,408
  4. Step 4: Simplify right side
    378,680x = 666,522,022,464
  5. Step 5: Solve for x
    x = 666,522,022,464/378,680
  6. Step 6: Final answer
    x = 1,760,119.42

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.