Home / 442,855-687,611

Finding the Third Proportional to 442,855 and 687,611

Calculator

Solution

The third proportional to 442,855 and 687,611 is: 1,067,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,855 : 687,611 = 687,611 : x
  2. Step 2: Convert to fraction form
    442,855/687,611 = 687,611/x
  3. Step 3: Cross multiply
    442,855x = 687,611 × 687,611
  4. Step 4: Simplify right side
    442,855x = 472,808,887,321
  5. Step 5: Solve for x
    x = 472,808,887,321/442,855
  6. Step 6: Final answer
    x = 1,067,638.14

Related Problems

Find third proportional to 221,427.50 and 343,805.50
Half scale
Find third proportional to 885,710 and 1,375,222
Double scale
Find third proportional to 442,857 and 687,614
Similar ratio
Find third proportional to 664,282.50 and 1,031,416.50
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.