Home / 317,743-661,622

Finding the Third Proportional to 317,743 and 661,622

Calculator

Solution

The third proportional to 317,743 and 661,622 is: 1,377,665.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,743 : 661,622 = 661,622 : x
  2. Step 2: Convert to fraction form
    317,743/661,622 = 661,622/x
  3. Step 3: Cross multiply
    317,743x = 661,622 × 661,622
  4. Step 4: Simplify right side
    317,743x = 437,743,670,884
  5. Step 5: Solve for x
    x = 437,743,670,884/317,743
  6. Step 6: Final answer
    x = 1,377,665.82

Related Problems

Find third proportional to 158,871.50 and 330,811
Half scale
Find third proportional to 635,486 and 1,323,244
Double scale
Find third proportional to 317,745 and 661,626
Similar ratio
Find third proportional to 476,614.50 and 992,433
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.