Home / 340,860-715,980

Finding the Third Proportional to 340,860 and 715,980

Calculator

Solution

The third proportional to 340,860 and 715,980 is: 1,503,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,860 : 715,980 = 715,980 : x
  2. Step 2: Convert to fraction form
    340,860/715,980 = 715,980/x
  3. Step 3: Cross multiply
    340,860x = 715,980 × 715,980
  4. Step 4: Simplify right side
    340,860x = 512,627,360,400
  5. Step 5: Solve for x
    x = 512,627,360,400/340,860
  6. Step 6: Final answer
    x = 1,503,923.49

Related Problems

Find third proportional to 170,430 and 357,990
Half scale
Find third proportional to 681,720 and 1,431,960
Double scale
Find third proportional to 340,862 and 715,984
Similar ratio
Find third proportional to 511,290 and 1,073,970
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.