Home / 317,185-665,508

Finding the Third Proportional to 317,185 and 665,508

Calculator

Solution

The third proportional to 317,185 and 665,508 is: 1,396,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,185 : 665,508 = 665,508 : x
  2. Step 2: Convert to fraction form
    317,185/665,508 = 665,508/x
  3. Step 3: Cross multiply
    317,185x = 665,508 × 665,508
  4. Step 4: Simplify right side
    317,185x = 442,900,898,064
  5. Step 5: Solve for x
    x = 442,900,898,064/317,185
  6. Step 6: Final answer
    x = 1,396,348.81

Related Problems

Find third proportional to 158,592.50 and 332,754
Half scale
Find third proportional to 634,370 and 1,331,016
Double scale
Find third proportional to 317,187 and 665,512
Similar ratio
Find third proportional to 475,777.50 and 998,262
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.