Home / 331,216-718,443

Finding the Third Proportional to 331,216 and 718,443

Calculator

Solution

The third proportional to 331,216 and 718,443 is: 1,558,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,216 : 718,443 = 718,443 : x
  2. Step 2: Convert to fraction form
    331,216/718,443 = 718,443/x
  3. Step 3: Cross multiply
    331,216x = 718,443 × 718,443
  4. Step 4: Simplify right side
    331,216x = 516,160,344,249
  5. Step 5: Solve for x
    x = 516,160,344,249/331,216
  6. Step 6: Final answer
    x = 1,558,379.86

Related Problems

Find third proportional to 165,608 and 359,221.50
Half scale
Find third proportional to 662,432 and 1,436,886
Double scale
Find third proportional to 331,218 and 718,447
Similar ratio
Find third proportional to 496,824 and 1,077,664.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.