Home / 397,287-868,845

Finding the Third Proportional to 397,287 and 868,845

Calculator

Solution

The third proportional to 397,287 and 868,845 is: 1,900,116.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,287 : 868,845 = 868,845 : x
  2. Step 2: Convert to fraction form
    397,287/868,845 = 868,845/x
  3. Step 3: Cross multiply
    397,287x = 868,845 × 868,845
  4. Step 4: Simplify right side
    397,287x = 754,891,634,025
  5. Step 5: Solve for x
    x = 754,891,634,025/397,287
  6. Step 6: Final answer
    x = 1,900,116.63

Related Problems

Find third proportional to 198,643.50 and 434,422.50
Half scale
Find third proportional to 794,574 and 1,737,690
Double scale
Find third proportional to 397,289 and 868,849
Similar ratio
Find third proportional to 595,930.50 and 1,303,267.50
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.