Home / 394,800-868,308

Finding the Third Proportional to 394,800 and 868,308

Calculator

Solution

The third proportional to 394,800 and 868,308 is: 1,909,723.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,800 : 868,308 = 868,308 : x
  2. Step 2: Convert to fraction form
    394,800/868,308 = 868,308/x
  3. Step 3: Cross multiply
    394,800x = 868,308 × 868,308
  4. Step 4: Simplify right side
    394,800x = 753,958,782,864
  5. Step 5: Solve for x
    x = 753,958,782,864/394,800
  6. Step 6: Final answer
    x = 1,909,723.36

Related Problems

Find third proportional to 197,400 and 434,154
Half scale
Find third proportional to 789,600 and 1,736,616
Double scale
Find third proportional to 394,802 and 868,312
Similar ratio
Find third proportional to 592,200 and 1,302,462
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.