Home / 270,496-391,840

Finding the Third Proportional to 270,496 and 391,840

Calculator

Solution

The third proportional to 270,496 and 391,840 is: 567,618.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,496 : 391,840 = 391,840 : x
  2. Step 2: Convert to fraction form
    270,496/391,840 = 391,840/x
  3. Step 3: Cross multiply
    270,496x = 391,840 × 391,840
  4. Step 4: Simplify right side
    270,496x = 153,538,585,600
  5. Step 5: Solve for x
    x = 153,538,585,600/270,496
  6. Step 6: Final answer
    x = 567,618.69

Related Problems

Find third proportional to 135,248 and 195,920
Half scale
Find third proportional to 540,992 and 783,680
Double scale
Find third proportional to 270,498 and 391,843
Similar ratio
Find third proportional to 405,744 and 587,760
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.