Home / 397,074-856,356

Finding the Third Proportional to 397,074 and 856,356

Calculator

Solution

The third proportional to 397,074 and 856,356 is: 1,846,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,074 : 856,356 = 856,356 : x
  2. Step 2: Convert to fraction form
    397,074/856,356 = 856,356/x
  3. Step 3: Cross multiply
    397,074x = 856,356 × 856,356
  4. Step 4: Simplify right side
    397,074x = 733,345,598,736
  5. Step 5: Solve for x
    x = 733,345,598,736/397,074
  6. Step 6: Final answer
    x = 1,846,873.88

Related Problems

Find third proportional to 198,537 and 428,178
Half scale
Find third proportional to 794,148 and 1,712,712
Double scale
Find third proportional to 397,076 and 856,360
Similar ratio
Find third proportional to 595,611 and 1,284,534
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.