Home / 313,518-685,932

Finding the Third Proportional to 313,518 and 685,932

Calculator

Solution

The third proportional to 313,518 and 685,932 is: 1,500,719.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,518 : 685,932 = 685,932 : x
  2. Step 2: Convert to fraction form
    313,518/685,932 = 685,932/x
  3. Step 3: Cross multiply
    313,518x = 685,932 × 685,932
  4. Step 4: Simplify right side
    313,518x = 470,502,708,624
  5. Step 5: Solve for x
    x = 470,502,708,624/313,518
  6. Step 6: Final answer
    x = 1,500,719.92

Related Problems

Find third proportional to 156,759 and 342,966
Half scale
Find third proportional to 627,036 and 1,371,864
Double scale
Find third proportional to 313,520 and 685,936
Similar ratio
Find third proportional to 470,277 and 1,028,898
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.