Home / 392,422-591,509

Finding the Third Proportional to 392,422 and 591,509

Calculator

Solution

The third proportional to 392,422 and 591,509 is: 891,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,422 : 591,509 = 591,509 : x
  2. Step 2: Convert to fraction form
    392,422/591,509 = 591,509/x
  3. Step 3: Cross multiply
    392,422x = 591,509 × 591,509
  4. Step 4: Simplify right side
    392,422x = 349,882,897,081
  5. Step 5: Solve for x
    x = 349,882,897,081/392,422
  6. Step 6: Final answer
    x = 891,598.58

Related Problems

Find third proportional to 196,211 and 295,754.50
Half scale
Find third proportional to 784,844 and 1,183,018
Double scale
Find third proportional to 392,424 and 591,512
Similar ratio
Find third proportional to 588,633 and 887,263.50
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.