Home / 378,724-816,472

Finding the Third Proportional to 378,724 and 816,472

Calculator

Solution

The third proportional to 378,724 and 816,472 is: 1,760,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,724 : 816,472 = 816,472 : x
  2. Step 2: Convert to fraction form
    378,724/816,472 = 816,472/x
  3. Step 3: Cross multiply
    378,724x = 816,472 × 816,472
  4. Step 4: Simplify right side
    378,724x = 666,626,526,784
  5. Step 5: Solve for x
    x = 666,626,526,784/378,724
  6. Step 6: Final answer
    x = 1,760,190.87

Related Problems

Find third proportional to 189,362 and 408,236
Half scale
Find third proportional to 757,448 and 1,632,944
Double scale
Find third proportional to 378,726 and 816,476
Similar ratio
Find third proportional to 568,086 and 1,224,708
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.