Home / 398,900-598,629

Finding the Third Proportional to 398,900 and 598,629

Calculator

Solution

The third proportional to 398,900 and 598,629 is: 898,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,900 : 598,629 = 598,629 : x
  2. Step 2: Convert to fraction form
    398,900/598,629 = 598,629/x
  3. Step 3: Cross multiply
    398,900x = 598,629 × 598,629
  4. Step 4: Simplify right side
    398,900x = 358,356,679,641
  5. Step 5: Solve for x
    x = 358,356,679,641/398,900
  6. Step 6: Final answer
    x = 898,362.20

Related Problems

Find third proportional to 199,450 and 299,314.50
Half scale
Find third proportional to 797,800 and 1,197,258
Double scale
Find third proportional to 398,902 and 598,632
Similar ratio
Find third proportional to 598,350 and 897,943.50
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.