Home / 431,120-652,643

Finding the Third Proportional to 431,120 and 652,643

Calculator

Solution

The third proportional to 431,120 and 652,643 is: 987,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,120 : 652,643 = 652,643 : x
  2. Step 2: Convert to fraction form
    431,120/652,643 = 652,643/x
  3. Step 3: Cross multiply
    431,120x = 652,643 × 652,643
  4. Step 4: Simplify right side
    431,120x = 425,942,885,449
  5. Step 5: Solve for x
    x = 425,942,885,449/431,120
  6. Step 6: Final answer
    x = 987,991.48

Related Problems

Find third proportional to 215,560 and 326,321.50
Half scale
Find third proportional to 862,240 and 1,305,286
Double scale
Find third proportional to 431,122 and 652,646
Similar ratio
Find third proportional to 646,680 and 978,964.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.