Home / 443,353-687,901

Finding the Third Proportional to 443,353 and 687,901

Calculator

Solution

The third proportional to 443,353 and 687,901 is: 1,067,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,353 : 687,901 = 687,901 : x
  2. Step 2: Convert to fraction form
    443,353/687,901 = 687,901/x
  3. Step 3: Cross multiply
    443,353x = 687,901 × 687,901
  4. Step 4: Simplify right side
    443,353x = 473,207,785,801
  5. Step 5: Solve for x
    x = 473,207,785,801/443,353
  6. Step 6: Final answer
    x = 1,067,338.63

Related Problems

Find third proportional to 221,676.50 and 343,950.50
Half scale
Find third proportional to 886,706 and 1,375,802
Double scale
Find third proportional to 443,355 and 687,904
Similar ratio
Find third proportional to 665,029.50 and 1,031,851.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.