Home / 418,330-628,448

Finding the Third Proportional to 418,330 and 628,448

Calculator

Solution

The third proportional to 418,330 and 628,448 is: 944,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,330 : 628,448 = 628,448 : x
  2. Step 2: Convert to fraction form
    418,330/628,448 = 628,448/x
  3. Step 3: Cross multiply
    418,330x = 628,448 × 628,448
  4. Step 4: Simplify right side
    418,330x = 394,946,888,704
  5. Step 5: Solve for x
    x = 394,946,888,704/418,330
  6. Step 6: Final answer
    x = 944,103.67

Related Problems

Find third proportional to 209,165 and 314,224
Half scale
Find third proportional to 836,660 and 1,256,896
Double scale
Find third proportional to 418,332 and 628,451
Similar ratio
Find third proportional to 627,495 and 942,672
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.