Finding the Third Proportional to 394,403,424 and 615,481,589
Calculator
Solution
The third proportional to 394,403,424 and 615,481,589 is: 960,482,499.25
Step by Step Solution
- Step 1: Write the proportion equation
394,403,424 : 615,481,589 = 615,481,589 : x - Step 2: Convert to fraction form
394,403,424/615,481,589 = 615,481,589/x - Step 3: Cross multiply
394,403,424x = 615,481,589 × 615,481,589 - Step 4: Simplify right side
394,403,424x = 378,817,586,397,964,928 - Step 5: Solve for x
x = 378,817,586,397,964,928/394,403,424 - Step 6: Final answer
x = 960,482,499.25
Related Problems
Find third proportional to 197,201,712 and 307,740,794.50
Half scale
Find third proportional to 788,806,848 and 1,230,963,178
Double scale
Find third proportional to 394,403,426 and 615,481,592
Similar ratio
Find third proportional to 591,605,136 and 923,222,383.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.