Home / 378,000-818,064

Finding the Third Proportional to 378,000 and 818,064

Calculator

Solution

The third proportional to 378,000 and 818,064 is: 1,770,446.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,000 : 818,064 = 818,064 : x
  2. Step 2: Convert to fraction form
    378,000/818,064 = 818,064/x
  3. Step 3: Cross multiply
    378,000x = 818,064 × 818,064
  4. Step 4: Simplify right side
    378,000x = 669,228,708,096
  5. Step 5: Solve for x
    x = 669,228,708,096/378,000
  6. Step 6: Final answer
    x = 1,770,446.32

Related Problems

Find third proportional to 189,000 and 409,032
Half scale
Find third proportional to 756,000 and 1,636,128
Double scale
Find third proportional to 378,002 and 818,068
Similar ratio
Find third proportional to 567,000 and 1,227,096
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.