Home / 315,212-682,928

Finding the Third Proportional to 315,212 and 682,928

Calculator

Solution

The third proportional to 315,212 and 682,928 is: 1,479,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,212 : 682,928 = 682,928 : x
  2. Step 2: Convert to fraction form
    315,212/682,928 = 682,928/x
  3. Step 3: Cross multiply
    315,212x = 682,928 × 682,928
  4. Step 4: Simplify right side
    315,212x = 466,390,653,184
  5. Step 5: Solve for x
    x = 466,390,653,184/315,212
  6. Step 6: Final answer
    x = 1,479,609.45

Related Problems

Find third proportional to 157,606 and 341,464
Half scale
Find third proportional to 630,424 and 1,365,856
Double scale
Find third proportional to 315,214 and 682,932
Similar ratio
Find third proportional to 472,818 and 1,024,392
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.