Home / 443,830-628,009

Finding the Third Proportional to 443,830 and 628,009

Calculator

Solution

The third proportional to 443,830 and 628,009 is: 888,617.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,830 : 628,009 = 628,009 : x
  2. Step 2: Convert to fraction form
    443,830/628,009 = 628,009/x
  3. Step 3: Cross multiply
    443,830x = 628,009 × 628,009
  4. Step 4: Simplify right side
    443,830x = 394,395,304,081
  5. Step 5: Solve for x
    x = 394,395,304,081/443,830
  6. Step 6: Final answer
    x = 888,617.95

Related Problems

Find third proportional to 221,915 and 314,004.50
Half scale
Find third proportional to 887,660 and 1,256,018
Double scale
Find third proportional to 443,832 and 628,012
Similar ratio
Find third proportional to 665,745 and 942,013.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.