Finding the Third Proportional to 391,237.50 and 857,197.50
Calculator
Solution
The third proportional to 391,237.50 and 857,197.50 is: 1,878,111.26
Step by Step Solution
- Step 1: Write the proportion equation
391,237.50 : 857,197.50 = 857,197.50 : x - Step 2: Convert to fraction form
391,237.50/857,197.50 = 857,197.50/x - Step 3: Cross multiply
391,237.50x = 857,197.50 × 857,197.50 - Step 4: Simplify right side
391,237.50x = 734,787,554,006.25 - Step 5: Solve for x
x = 734,787,554,006.25/391,237.50 - Step 6: Final answer
x = 1,878,111.26
Related Problems
Find third proportional to 195,618.75 and 428,598.75
Half scale
Find third proportional to 782,475 and 1,714,395
Double scale
Find third proportional to 391,240 and 857,202
Similar ratio
Find third proportional to 586,856.25 and 1,285,796.25
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.