Home / 259,754-389,640

Finding the Third Proportional to 259,754 and 389,640

Calculator

Solution

The third proportional to 259,754 and 389,640 is: 584,473.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,754 : 389,640 = 389,640 : x
  2. Step 2: Convert to fraction form
    259,754/389,640 = 389,640/x
  3. Step 3: Cross multiply
    259,754x = 389,640 × 389,640
  4. Step 4: Simplify right side
    259,754x = 151,819,329,600
  5. Step 5: Solve for x
    x = 151,819,329,600/259,754
  6. Step 6: Final answer
    x = 584,473.50

Related Problems

Find third proportional to 129,877 and 194,820
Half scale
Find third proportional to 519,508 and 779,280
Double scale
Find third proportional to 259,756 and 389,643
Similar ratio
Find third proportional to 389,631 and 584,460
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.