Home / 431,628.75-670,209.19

Finding the Third Proportional to 431,628.75 and 670,209.19

Calculator

Solution

The third proportional to 431,628.75 and 670,209.19 is: 1,040,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,628.75 : 670,209.19 = 670,209.19 : x
  2. Step 2: Convert to fraction form
    431,628.75/670,209.19 = 670,209.19/x
  3. Step 3: Cross multiply
    431,628.75x = 670,209.19 × 670,209.19
  4. Step 4: Simplify right side
    431,628.75x = 449,180,355,009.41
  5. Step 5: Solve for x
    x = 449,180,355,009.41/431,628.75
  6. Step 6: Final answer
    x = 1,040,663.66

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.