Finding the Third Proportional to 641,990 and 1,518,237
Calculator
Solution
The third proportional to 641,990 and 1,518,237 is: 3,590,466.50
Step by Step Solution
- Step 1: Write the proportion equation
641,990 : 1,518,237 = 1,518,237 : x - Step 2: Convert to fraction form
641,990/1,518,237 = 1,518,237/x - Step 3: Cross multiply
641,990x = 1,518,237 × 1,518,237 - Step 4: Simplify right side
641,990x = 2,305,043,588,169 - Step 5: Solve for x
x = 2,305,043,588,169/641,990 - Step 6: Final answer
x = 3,590,466.50
Related Problems
Find third proportional to 320,995 and 759,118.50
Half scale
Find third proportional to 1,283,980 and 3,036,474
Double scale
Find third proportional to 641,992 and 1,518,242
Similar ratio
Find third proportional to 962,985 and 2,277,355.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.