Home / 313,570-687,186

Finding the Third Proportional to 313,570 and 687,186

Calculator

Solution

The third proportional to 313,570 and 687,186 is: 1,505,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,570 : 687,186 = 687,186 : x
  2. Step 2: Convert to fraction form
    313,570/687,186 = 687,186/x
  3. Step 3: Cross multiply
    313,570x = 687,186 × 687,186
  4. Step 4: Simplify right side
    313,570x = 472,224,598,596
  5. Step 5: Solve for x
    x = 472,224,598,596/313,570
  6. Step 6: Final answer
    x = 1,505,962.30

Related Problems

Find third proportional to 156,785 and 343,593
Half scale
Find third proportional to 627,140 and 1,374,372
Double scale
Find third proportional to 313,572 and 687,190
Similar ratio
Find third proportional to 470,355 and 1,030,779
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.