Home / 180,780-394,878

Finding the Third Proportional to 180,780 and 394,878

Calculator

Solution

The third proportional to 180,780 and 394,878 is: 862,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,780 : 394,878 = 394,878 : x
  2. Step 2: Convert to fraction form
    180,780/394,878 = 394,878/x
  3. Step 3: Cross multiply
    180,780x = 394,878 × 394,878
  4. Step 4: Simplify right side
    180,780x = 155,928,634,884
  5. Step 5: Solve for x
    x = 155,928,634,884/180,780
  6. Step 6: Final answer
    x = 862,532.55

Related Problems

Find third proportional to 90,390 and 197,439
Half scale
Find third proportional to 361,560 and 789,756
Double scale
Find third proportional to 180,782 and 394,882
Similar ratio
Find third proportional to 271,170 and 592,317
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.