Home / 289,772-443,268

Finding the Third Proportional to 289,772 and 443,268

Calculator

Solution

The third proportional to 289,772 and 443,268 is: 678,072.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,772 : 443,268 = 443,268 : x
  2. Step 2: Convert to fraction form
    289,772/443,268 = 443,268/x
  3. Step 3: Cross multiply
    289,772x = 443,268 × 443,268
  4. Step 4: Simplify right side
    289,772x = 196,486,519,824
  5. Step 5: Solve for x
    x = 196,486,519,824/289,772
  6. Step 6: Final answer
    x = 678,072.83

Related Problems

Find third proportional to 144,886 and 221,634
Half scale
Find third proportional to 579,544 and 886,536
Double scale
Find third proportional to 289,774 and 443,271
Similar ratio
Find third proportional to 434,658 and 664,902
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.