Home / 398,908-853,864

Finding the Third Proportional to 398,908 and 853,864

Calculator

Solution

The third proportional to 398,908 and 853,864 is: 1,827,698.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,908 : 853,864 = 853,864 : x
  2. Step 2: Convert to fraction form
    398,908/853,864 = 853,864/x
  3. Step 3: Cross multiply
    398,908x = 853,864 × 853,864
  4. Step 4: Simplify right side
    398,908x = 729,083,730,496
  5. Step 5: Solve for x
    x = 729,083,730,496/398,908
  6. Step 6: Final answer
    x = 1,827,698.94

Related Problems

Find third proportional to 199,454 and 426,932
Half scale
Find third proportional to 797,816 and 1,707,728
Double scale
Find third proportional to 398,910 and 853,868
Similar ratio
Find third proportional to 598,362 and 1,280,796
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.