Home / 307,170-480,809

Finding the Third Proportional to 307,170 and 480,809

Calculator

Solution

The third proportional to 307,170 and 480,809 is: 752,603.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,170 : 480,809 = 480,809 : x
  2. Step 2: Convert to fraction form
    307,170/480,809 = 480,809/x
  3. Step 3: Cross multiply
    307,170x = 480,809 × 480,809
  4. Step 4: Simplify right side
    307,170x = 231,177,294,481
  5. Step 5: Solve for x
    x = 231,177,294,481/307,170
  6. Step 6: Final answer
    x = 752,603.75

Related Problems

Find third proportional to 153,585 and 240,404.50
Half scale
Find third proportional to 614,340 and 961,618
Double scale
Find third proportional to 307,172 and 480,812
Similar ratio
Find third proportional to 460,755 and 721,213.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.