Home / 310,956-659,277

Finding the Third Proportional to 310,956 and 659,277

Calculator

Solution

The third proportional to 310,956 and 659,277 is: 1,397,773.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,956 : 659,277 = 659,277 : x
  2. Step 2: Convert to fraction form
    310,956/659,277 = 659,277/x
  3. Step 3: Cross multiply
    310,956x = 659,277 × 659,277
  4. Step 4: Simplify right side
    310,956x = 434,646,162,729
  5. Step 5: Solve for x
    x = 434,646,162,729/310,956
  6. Step 6: Final answer
    x = 1,397,773.84

Related Problems

Find third proportional to 155,478 and 329,638.50
Half scale
Find third proportional to 621,912 and 1,318,554
Double scale
Find third proportional to 310,958 and 659,281
Similar ratio
Find third proportional to 466,434 and 988,915.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.