Home / 338,029-505,990

Finding the Third Proportional to 338,029 and 505,990

Calculator

Solution

The third proportional to 338,029 and 505,990 is: 757,408.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,029 : 505,990 = 505,990 : x
  2. Step 2: Convert to fraction form
    338,029/505,990 = 505,990/x
  3. Step 3: Cross multiply
    338,029x = 505,990 × 505,990
  4. Step 4: Simplify right side
    338,029x = 256,025,880,100
  5. Step 5: Solve for x
    x = 256,025,880,100/338,029
  6. Step 6: Final answer
    x = 757,408.03

Related Problems

Find third proportional to 169,014.50 and 252,995
Half scale
Find third proportional to 676,058 and 1,011,980
Double scale
Find third proportional to 338,031 and 505,993
Similar ratio
Find third proportional to 507,043.50 and 758,985
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.