Home / 392,317-831,712

Finding the Third Proportional to 392,317 and 831,712

Calculator

Solution

The third proportional to 392,317 and 831,712 is: 1,763,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,317 : 831,712 = 831,712 : x
  2. Step 2: Convert to fraction form
    392,317/831,712 = 831,712/x
  3. Step 3: Cross multiply
    392,317x = 831,712 × 831,712
  4. Step 4: Simplify right side
    392,317x = 691,744,850,944
  5. Step 5: Solve for x
    x = 691,744,850,944/392,317
  6. Step 6: Final answer
    x = 1,763,229.36

Related Problems

Find third proportional to 196,158.50 and 415,856
Half scale
Find third proportional to 784,634 and 1,663,424
Double scale
Find third proportional to 392,319 and 831,716
Similar ratio
Find third proportional to 588,475.50 and 1,247,568
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.