Home / 259,740-389,610

Finding the Third Proportional to 259,740 and 389,610

Calculator

Solution

The third proportional to 259,740 and 389,610 is: 584,415

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,740 : 389,610 = 389,610 : x
  2. Step 2: Convert to fraction form
    259,740/389,610 = 389,610/x
  3. Step 3: Cross multiply
    259,740x = 389,610 × 389,610
  4. Step 4: Simplify right side
    259,740x = 151,795,952,100
  5. Step 5: Solve for x
    x = 151,795,952,100/259,740
  6. Step 6: Final answer
    x = 584,415

Related Problems

Find third proportional to 129,870 and 194,805
Half scale
Find third proportional to 519,480 and 779,220
Double scale
Find third proportional to 259,742 and 389,613
Similar ratio
Find third proportional to 389,610 and 584,415
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.