Finding the Third Proportional to 298,050 and 638,756
Calculator
Solution
The third proportional to 298,050 and 638,756 is: 1,368,928.80
Step by Step Solution
- Step 1: Write the proportion equation
298,050 : 638,756 = 638,756 : x - Step 2: Convert to fraction form
298,050/638,756 = 638,756/x - Step 3: Cross multiply
298,050x = 638,756 × 638,756 - Step 4: Simplify right side
298,050x = 408,009,227,536 - Step 5: Solve for x
x = 408,009,227,536/298,050 - Step 6: Final answer
x = 1,368,928.80
Related Problems
Find third proportional to 149,025 and 319,378
Half scale
Find third proportional to 596,100 and 1,277,512
Double scale
Find third proportional to 298,052 and 638,760
Similar ratio
Find third proportional to 447,075 and 958,134
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.