Home / 383,844-811,980

Finding the Third Proportional to 383,844 and 811,980

Calculator

Solution

The third proportional to 383,844 and 811,980 is: 1,717,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,844 : 811,980 = 811,980 : x
  2. Step 2: Convert to fraction form
    383,844/811,980 = 811,980/x
  3. Step 3: Cross multiply
    383,844x = 811,980 × 811,980
  4. Step 4: Simplify right side
    383,844x = 659,311,520,400
  5. Step 5: Solve for x
    x = 659,311,520,400/383,844
  6. Step 6: Final answer
    x = 1,717,654.88

Related Problems

Find third proportional to 191,922 and 405,990
Half scale
Find third proportional to 767,688 and 1,623,960
Double scale
Find third proportional to 383,846 and 811,984
Similar ratio
Find third proportional to 575,766 and 1,217,970
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.