Home / 306,624-659,880

Finding the Third Proportional to 306,624 and 659,880

Calculator

Solution

The third proportional to 306,624 and 659,880 is: 1,420,115.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,624 : 659,880 = 659,880 : x
  2. Step 2: Convert to fraction form
    306,624/659,880 = 659,880/x
  3. Step 3: Cross multiply
    306,624x = 659,880 × 659,880
  4. Step 4: Simplify right side
    306,624x = 435,441,614,400
  5. Step 5: Solve for x
    x = 435,441,614,400/306,624
  6. Step 6: Final answer
    x = 1,420,115.89

Related Problems

Find third proportional to 153,312 and 329,940
Half scale
Find third proportional to 613,248 and 1,319,760
Double scale
Find third proportional to 306,626 and 659,884
Similar ratio
Find third proportional to 459,936 and 989,820
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.