Home / 400,668-816,180

Finding the Third Proportional to 400,668 and 816,180

Calculator

Solution

The third proportional to 400,668 and 816,180 is: 1,662,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,668 : 816,180 = 816,180 : x
  2. Step 2: Convert to fraction form
    400,668/816,180 = 816,180/x
  3. Step 3: Cross multiply
    400,668x = 816,180 × 816,180
  4. Step 4: Simplify right side
    400,668x = 666,149,792,400
  5. Step 5: Solve for x
    x = 666,149,792,400/400,668
  6. Step 6: Final answer
    x = 1,662,597.94

Related Problems

Find third proportional to 200,334 and 408,090
Half scale
Find third proportional to 801,336 and 1,632,360
Double scale
Find third proportional to 400,670 and 816,184
Similar ratio
Find third proportional to 601,002 and 1,224,270
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.