Finding the Third Proportional to 642,920.63 and 881,619.75
Calculator
Solution
The third proportional to 642,920.63 and 881,619.75 is: 1,208,941.44
Step by Step Solution
- Step 1: Write the proportion equation
642,920.63 : 881,619.75 = 881,619.75 : x - Step 2: Convert to fraction form
642,920.63/881,619.75 = 881,619.75/x - Step 3: Cross multiply
642,920.63x = 881,619.75 × 881,619.75 - Step 4: Simplify right side
642,920.63x = 777,253,383,590.06 - Step 5: Solve for x
x = 777,253,383,590.06/642,920.63 - Step 6: Final answer
x = 1,208,941.44
Related Problems
Find third proportional to 321,460.31 and 440,809.88
Half scale
Find third proportional to 1,285,841.25 and 1,763,239.50
Double scale
Find third proportional to 642,923 and 881,622
Similar ratio
Find third proportional to 964,380.94 and 1,322,429.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.