Home / 438,502-655,990

Finding the Third Proportional to 438,502 and 655,990

Calculator

Solution

The third proportional to 438,502 and 655,990 is: 981,347.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,502 : 655,990 = 655,990 : x
  2. Step 2: Convert to fraction form
    438,502/655,990 = 655,990/x
  3. Step 3: Cross multiply
    438,502x = 655,990 × 655,990
  4. Step 4: Simplify right side
    438,502x = 430,322,880,100
  5. Step 5: Solve for x
    x = 430,322,880,100/438,502
  6. Step 6: Final answer
    x = 981,347.59

Related Problems

Find third proportional to 219,251 and 327,995
Half scale
Find third proportional to 877,004 and 1,311,980
Double scale
Find third proportional to 438,504 and 655,993
Similar ratio
Find third proportional to 657,753 and 983,985
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.