Home / 381,361.50-821,100

Finding the Third Proportional to 381,361.50 and 821,100

Calculator

Solution

The third proportional to 381,361.50 and 821,100 is: 1,767,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,361.50 : 821,100 = 821,100 : x
  2. Step 2: Convert to fraction form
    381,361.50/821,100 = 821,100/x
  3. Step 3: Cross multiply
    381,361.50x = 821,100 × 821,100
  4. Step 4: Simplify right side
    381,361.50x = 674,205,210,000
  5. Step 5: Solve for x
    x = 674,205,210,000/381,361.50
  6. Step 6: Final answer
    x = 1,767,890.07

Related Problems

Find third proportional to 190,680.75 and 410,550
Half scale
Find third proportional to 762,723 and 1,642,200
Double scale
Find third proportional to 381,364 and 821,104
Similar ratio
Find third proportional to 572,042.25 and 1,231,650
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.