Home / 321,962-699,282

Finding the Third Proportional to 321,962 and 699,282

Calculator

Solution

The third proportional to 321,962 and 699,282 is: 1,518,798.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,962 : 699,282 = 699,282 : x
  2. Step 2: Convert to fraction form
    321,962/699,282 = 699,282/x
  3. Step 3: Cross multiply
    321,962x = 699,282 × 699,282
  4. Step 4: Simplify right side
    321,962x = 488,995,315,524
  5. Step 5: Solve for x
    x = 488,995,315,524/321,962
  6. Step 6: Final answer
    x = 1,518,798.23

Related Problems

Find third proportional to 160,981 and 349,641
Half scale
Find third proportional to 643,924 and 1,398,564
Double scale
Find third proportional to 321,964 and 699,286
Similar ratio
Find third proportional to 482,943 and 1,048,923
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.