Finding the Third Proportional to 511,943.50 and 689,177.50
Calculator
Solution
The third proportional to 511,943.50 and 689,177.50 is: 927,769.62
Step by Step Solution
- Step 1: Write the proportion equation
511,943.50 : 689,177.50 = 689,177.50 : x - Step 2: Convert to fraction form
511,943.50/689,177.50 = 689,177.50/x - Step 3: Cross multiply
511,943.50x = 689,177.50 × 689,177.50 - Step 4: Simplify right side
511,943.50x = 474,965,626,506.25 - Step 5: Solve for x
x = 474,965,626,506.25/511,943.50 - Step 6: Final answer
x = 927,769.62
Related Problems
Find third proportional to 255,971.75 and 344,588.75
Half scale
Find third proportional to 1,023,887 and 1,378,355
Double scale
Find third proportional to 511,946 and 689,180
Similar ratio
Find third proportional to 767,915.25 and 1,033,766.25
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.