Home / 317,200-491,736

Finding the Third Proportional to 317,200 and 491,736

Calculator

Solution

The third proportional to 317,200 and 491,736 is: 762,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,200 : 491,736 = 491,736 : x
  2. Step 2: Convert to fraction form
    317,200/491,736 = 491,736/x
  3. Step 3: Cross multiply
    317,200x = 491,736 × 491,736
  4. Step 4: Simplify right side
    317,200x = 241,804,293,696
  5. Step 5: Solve for x
    x = 241,804,293,696/317,200
  6. Step 6: Final answer
    x = 762,308.62

Related Problems

Find third proportional to 158,600 and 245,868
Half scale
Find third proportional to 634,400 and 983,472
Double scale
Find third proportional to 317,202 and 491,739
Similar ratio
Find third proportional to 475,800 and 737,604
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.