Home / 311,965.50-638,716.50

Finding the Third Proportional to 311,965.50 and 638,716.50

Calculator

Solution

The third proportional to 311,965.50 and 638,716.50 is: 1,307,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,965.50 : 638,716.50 = 638,716.50 : x
  2. Step 2: Convert to fraction form
    311,965.50/638,716.50 = 638,716.50/x
  3. Step 3: Cross multiply
    311,965.50x = 638,716.50 × 638,716.50
  4. Step 4: Simplify right side
    311,965.50x = 407,958,767,372.25
  5. Step 5: Solve for x
    x = 407,958,767,372.25/311,965.50
  6. Step 6: Final answer
    x = 1,307,704.75

Related Problems

Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.