Home / 388,628-836,305

Finding the Third Proportional to 388,628 and 836,305

Calculator

Solution

The third proportional to 388,628 and 836,305 is: 1,799,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,628 : 836,305 = 836,305 : x
  2. Step 2: Convert to fraction form
    388,628/836,305 = 836,305/x
  3. Step 3: Cross multiply
    388,628x = 836,305 × 836,305
  4. Step 4: Simplify right side
    388,628x = 699,406,053,025
  5. Step 5: Solve for x
    x = 699,406,053,025/388,628
  6. Step 6: Final answer
    x = 1,799,680.04

Related Problems

Find third proportional to 194,314 and 418,152.50
Half scale
Find third proportional to 777,256 and 1,672,610
Double scale
Find third proportional to 388,630 and 836,309
Similar ratio
Find third proportional to 582,942 and 1,254,457.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.