Home / 425,260-685,198

Finding the Third Proportional to 425,260 and 685,198

Calculator

Solution

The third proportional to 425,260 and 685,198 is: 1,104,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,260 : 685,198 = 685,198 : x
  2. Step 2: Convert to fraction form
    425,260/685,198 = 685,198/x
  3. Step 3: Cross multiply
    425,260x = 685,198 × 685,198
  4. Step 4: Simplify right side
    425,260x = 469,496,299,204
  5. Step 5: Solve for x
    x = 469,496,299,204/425,260
  6. Step 6: Final answer
    x = 1,104,021.77

Related Problems

Find third proportional to 212,630 and 342,599
Half scale
Find third proportional to 850,520 and 1,370,396
Double scale
Find third proportional to 425,262 and 685,201
Similar ratio
Find third proportional to 637,890 and 1,027,797
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.