Finding the Third Proportional to 678,394.50 and 921,327.75
Calculator
Solution
The third proportional to 678,394.50 and 921,327.75 is: 1,251,255.46
Step by Step Solution
- Step 1: Write the proportion equation
678,394.50 : 921,327.75 = 921,327.75 : x - Step 2: Convert to fraction form
678,394.50/921,327.75 = 921,327.75/x - Step 3: Cross multiply
678,394.50x = 921,327.75 × 921,327.75 - Step 4: Simplify right side
678,394.50x = 848,844,822,920.06 - Step 5: Solve for x
x = 848,844,822,920.06/678,394.50 - Step 6: Final answer
x = 1,251,255.46
Related Problems
Find third proportional to 339,197.25 and 460,663.88
Half scale
Find third proportional to 1,356,789 and 1,842,655.50
Double scale
Find third proportional to 678,397 and 921,330
Similar ratio
Find third proportional to 1,017,591.75 and 1,381,991.63
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.