Home / 260,686-403,009

Finding the Third Proportional to 260,686 and 403,009

Calculator

Solution

The third proportional to 260,686 and 403,009 is: 623,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,686 : 403,009 = 403,009 : x
  2. Step 2: Convert to fraction form
    260,686/403,009 = 403,009/x
  3. Step 3: Cross multiply
    260,686x = 403,009 × 403,009
  4. Step 4: Simplify right side
    260,686x = 162,416,254,081
  5. Step 5: Solve for x
    x = 162,416,254,081/260,686
  6. Step 6: Final answer
    x = 623,034.05

Related Problems

Find third proportional to 130,343 and 201,504.50
Half scale
Find third proportional to 521,372 and 806,018
Double scale
Find third proportional to 260,688 and 403,012
Similar ratio
Find third proportional to 391,029 and 604,513.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.