Finding the Third Proportional to 642,461.63 and 1,381,811.06
Calculator
Solution
The third proportional to 642,461.63 and 1,381,811.06 is: 2,972,009.13
Step by Step Solution
- Step 1: Write the proportion equation
642,461.63 : 1,381,811.06 = 1,381,811.06 : x - Step 2: Convert to fraction form
642,461.63/1,381,811.06 = 1,381,811.06/x - Step 3: Cross multiply
642,461.63x = 1,381,811.06 × 1,381,811.06 - Step 4: Simplify right side
642,461.63x = 1,909,401,812,447.38 - Step 5: Solve for x
x = 1,909,401,812,447.38/642,461.63 - Step 6: Final answer
x = 2,972,009.13
Related Problems
Find third proportional to 321,230.81 and 690,905.53
Half scale
Find third proportional to 1,284,923.25 and 2,763,622.13
Double scale
Find third proportional to 642,464 and 1,381,815
Similar ratio
Find third proportional to 963,692.44 and 2,072,716.59
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.