Home / 392,314-831,708

Finding the Third Proportional to 392,314 and 831,708

Calculator

Solution

The third proportional to 392,314 and 831,708 is: 1,763,225.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,314 : 831,708 = 831,708 : x
  2. Step 2: Convert to fraction form
    392,314/831,708 = 831,708/x
  3. Step 3: Cross multiply
    392,314x = 831,708 × 831,708
  4. Step 4: Simplify right side
    392,314x = 691,738,197,264
  5. Step 5: Solve for x
    x = 691,738,197,264/392,314
  6. Step 6: Final answer
    x = 1,763,225.88

Related Problems

Find third proportional to 196,157 and 415,854
Half scale
Find third proportional to 784,628 and 1,663,416
Double scale
Find third proportional to 392,316 and 831,712
Similar ratio
Find third proportional to 588,471 and 1,247,562
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.