Home / 307,551-661,086

Finding the Third Proportional to 307,551 and 661,086

Calculator

Solution

The third proportional to 307,551 and 661,086 is: 1,421,015.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,551 : 661,086 = 661,086 : x
  2. Step 2: Convert to fraction form
    307,551/661,086 = 661,086/x
  3. Step 3: Cross multiply
    307,551x = 661,086 × 661,086
  4. Step 4: Simplify right side
    307,551x = 437,034,699,396
  5. Step 5: Solve for x
    x = 437,034,699,396/307,551
  6. Step 6: Final answer
    x = 1,421,015.37

Related Problems

Find third proportional to 153,775.50 and 330,543
Half scale
Find third proportional to 615,102 and 1,322,172
Double scale
Find third proportional to 307,553 and 661,090
Similar ratio
Find third proportional to 461,326.50 and 991,629
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.