Home / 220,778-491,520

Finding the Third Proportional to 220,778 and 491,520

Calculator

Solution

The third proportional to 220,778 and 491,520 is: 1,094,275.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,778 : 491,520 = 491,520 : x
  2. Step 2: Convert to fraction form
    220,778/491,520 = 491,520/x
  3. Step 3: Cross multiply
    220,778x = 491,520 × 491,520
  4. Step 4: Simplify right side
    220,778x = 241,591,910,400
  5. Step 5: Solve for x
    x = 241,591,910,400/220,778
  6. Step 6: Final answer
    x = 1,094,275.29

Related Problems

Find third proportional to 110,389 and 245,760
Half scale
Find third proportional to 441,556 and 983,040
Double scale
Find third proportional to 220,780 and 491,524
Similar ratio
Find third proportional to 331,167 and 737,280
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.