Finding the Third Proportional to 699 and 1,299
Calculator
Solution
The third proportional to 699 and 1,299 is: 2,414.02
Step by Step Solution
- Step 1: Write the proportion equation
699 : 1,299 = 1,299 : x - Step 2: Convert to fraction form
699/1,299 = 1,299/x - Step 3: Cross multiply
699x = 1,299 × 1,299 - Step 4: Simplify right side
699x = 1,687,401 - Step 5: Solve for x
x = 1,687,401/699 - Step 6: Final answer
x = 2,414.02
Related Problems
Find third proportional to 349.50 and 649.50
Half scale
Find third proportional to 1,398 and 2,598
Double scale
Find third proportional to 701 and 1,303
Similar ratio
Find third proportional to 1,048.50 and 1,948.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.86) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.