Home / 260,953-399,855

Finding the Third Proportional to 260,953 and 399,855

Calculator

Solution

The third proportional to 260,953 and 399,855 is: 612,692.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,953 : 399,855 = 399,855 : x
  2. Step 2: Convert to fraction form
    260,953/399,855 = 399,855/x
  3. Step 3: Cross multiply
    260,953x = 399,855 × 399,855
  4. Step 4: Simplify right side
    260,953x = 159,884,021,025
  5. Step 5: Solve for x
    x = 159,884,021,025/260,953
  6. Step 6: Final answer
    x = 612,692.79

Related Problems

Find third proportional to 130,476.50 and 199,927.50
Half scale
Find third proportional to 521,906 and 799,710
Double scale
Find third proportional to 260,955 and 399,858
Similar ratio
Find third proportional to 391,429.50 and 599,782.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.