Finding the Third Proportional to 310,446 and 679,009.50
Calculator
Solution
The third proportional to 310,446 and 679,009.50 is: 1,485,133.97
Step by Step Solution
- Step 1: Write the proportion equation
310,446 : 679,009.50 = 679,009.50 : x - Step 2: Convert to fraction form
310,446/679,009.50 = 679,009.50/x - Step 3: Cross multiply
310,446x = 679,009.50 × 679,009.50 - Step 4: Simplify right side
310,446x = 461,053,901,090.25 - Step 5: Solve for x
x = 461,053,901,090.25/310,446 - Step 6: Final answer
x = 1,485,133.97
Related Problems
Find third proportional to 155,223 and 339,504.75
Half scale
Find third proportional to 620,892 and 1,358,019
Double scale
Find third proportional to 310,448 and 679,014
Similar ratio
Find third proportional to 465,669 and 1,018,514.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.