Home / 296,589-639,834

Finding the Third Proportional to 296,589 and 639,834

Calculator

Solution

The third proportional to 296,589 and 639,834 is: 1,380,319.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,589 : 639,834 = 639,834 : x
  2. Step 2: Convert to fraction form
    296,589/639,834 = 639,834/x
  3. Step 3: Cross multiply
    296,589x = 639,834 × 639,834
  4. Step 4: Simplify right side
    296,589x = 409,387,547,556
  5. Step 5: Solve for x
    x = 409,387,547,556/296,589
  6. Step 6: Final answer
    x = 1,380,319.39

Related Problems

Find third proportional to 148,294.50 and 319,917
Half scale
Find third proportional to 593,178 and 1,279,668
Double scale
Find third proportional to 296,591 and 639,838
Similar ratio
Find third proportional to 444,883.50 and 959,751
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.