Finding the Third Proportional to 397,578.38 and 828,690.75
Calculator
Solution
The third proportional to 397,578.38 and 828,690.75 is: 1,727,277.95
Step by Step Solution
- Step 1: Write the proportion equation
397,578.38 : 828,690.75 = 828,690.75 : x - Step 2: Convert to fraction form
397,578.38/828,690.75 = 828,690.75/x - Step 3: Cross multiply
397,578.38x = 828,690.75 × 828,690.75 - Step 4: Simplify right side
397,578.38x = 686,728,359,135.56 - Step 5: Solve for x
x = 686,728,359,135.56/397,578.38 - Step 6: Final answer
x = 1,727,277.95
Related Problems
Find third proportional to 198,789.19 and 414,345.38
Half scale
Find third proportional to 795,156.75 and 1,657,381.50
Double scale
Find third proportional to 397,580 and 828,695
Similar ratio
Find third proportional to 596,367.56 and 1,243,036.13
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.