Finding the Third Proportional to 391,176.84 and 624,639.09
Calculator
Solution
The third proportional to 391,176.84 and 624,639.09 is: 997,436.34
Step by Step Solution
- Step 1: Write the proportion equation
391,176.84 : 624,639.09 = 624,639.09 : x - Step 2: Convert to fraction form
391,176.84/624,639.09 = 624,639.09/x - Step 3: Cross multiply
391,176.84x = 624,639.09 × 624,639.09 - Step 4: Simplify right side
391,176.84x = 390,173,997,440.82 - Step 5: Solve for x
x = 390,173,997,440.82/391,176.84 - Step 6: Final answer
x = 997,436.34
Related Problems
Find third proportional to 195,588.42 and 312,319.55
Half scale
Find third proportional to 782,353.69 and 1,249,278.19
Double scale
Find third proportional to 391,179 and 624,642
Similar ratio
Find third proportional to 586,765.27 and 936,958.64
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.