Home / 310,891-670,822

Finding the Third Proportional to 310,891 and 670,822

Calculator

Solution

The third proportional to 310,891 and 670,822 is: 1,447,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,891 : 670,822 = 670,822 : x
  2. Step 2: Convert to fraction form
    310,891/670,822 = 670,822/x
  3. Step 3: Cross multiply
    310,891x = 670,822 × 670,822
  4. Step 4: Simplify right side
    310,891x = 450,002,155,684
  5. Step 5: Solve for x
    x = 450,002,155,684/310,891
  6. Step 6: Final answer
    x = 1,447,459.58

Related Problems

Find third proportional to 155,445.50 and 335,411
Half scale
Find third proportional to 621,782 and 1,341,644
Double scale
Find third proportional to 310,893 and 670,826
Similar ratio
Find third proportional to 466,336.50 and 1,006,233
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.