Home / 443,966-721,312

Finding the Third Proportional to 443,966 and 721,312

Calculator

Solution

The third proportional to 443,966 and 721,312 is: 1,171,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,966 : 721,312 = 721,312 : x
  2. Step 2: Convert to fraction form
    443,966/721,312 = 721,312/x
  3. Step 3: Cross multiply
    443,966x = 721,312 × 721,312
  4. Step 4: Simplify right side
    443,966x = 520,291,001,344
  5. Step 5: Solve for x
    x = 520,291,001,344/443,966
  6. Step 6: Final answer
    x = 1,171,916.32

Related Problems

Find third proportional to 221,983 and 360,656
Half scale
Find third proportional to 887,932 and 1,442,624
Double scale
Find third proportional to 443,968 and 721,315
Similar ratio
Find third proportional to 665,949 and 1,081,968
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.