Home / 392,318-831,716

Finding the Third Proportional to 392,318 and 831,716

Calculator

Solution

The third proportional to 392,318 and 831,716 is: 1,763,241.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,318 : 831,716 = 831,716 : x
  2. Step 2: Convert to fraction form
    392,318/831,716 = 831,716/x
  3. Step 3: Cross multiply
    392,318x = 831,716 × 831,716
  4. Step 4: Simplify right side
    392,318x = 691,751,504,656
  5. Step 5: Solve for x
    x = 691,751,504,656/392,318
  6. Step 6: Final answer
    x = 1,763,241.82

Related Problems

Find third proportional to 196,159 and 415,858
Half scale
Find third proportional to 784,636 and 1,663,432
Double scale
Find third proportional to 392,320 and 831,720
Similar ratio
Find third proportional to 588,477 and 1,247,574
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.