Finding the Third Proportional to 309,372 and 655,350
Calculator
Solution
The third proportional to 309,372 and 655,350 is: 1,388,243.35
Step by Step Solution
- Step 1: Write the proportion equation
309,372 : 655,350 = 655,350 : x - Step 2: Convert to fraction form
309,372/655,350 = 655,350/x - Step 3: Cross multiply
309,372x = 655,350 × 655,350 - Step 4: Simplify right side
309,372x = 429,483,622,500 - Step 5: Solve for x
x = 429,483,622,500/309,372 - Step 6: Final answer
x = 1,388,243.35
Related Problems
Find third proportional to 154,686 and 327,675
Half scale
Find third proportional to 618,744 and 1,310,700
Double scale
Find third proportional to 309,374 and 655,354
Similar ratio
Find third proportional to 464,058 and 983,025
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.