Finding the Third Proportional to 519 and 618
Calculator
Solution
The third proportional to 519 and 618 is: 735.88
Step by Step Solution
- Step 1: Write the proportion equation
519 : 618 = 618 : x - Step 2: Convert to fraction form
519/618 = 618/x - Step 3: Cross multiply
519x = 618 × 618 - Step 4: Simplify right side
519x = 381,924 - Step 5: Solve for x
x = 381,924/519 - Step 6: Final answer
x = 735.88
Related Problems
Find third proportional to 259.50 and 309
Half scale
Find third proportional to 1,038 and 1,236
Double scale
Find third proportional to 521 and 620
Similar ratio
Find third proportional to 778.50 and 927
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.