Finding the Third Proportional to 921,356 and 1,421,397
Calculator
Solution
The third proportional to 921,356 and 1,421,397 is: 2,192,821.70
Step by Step Solution
- Step 1: Write the proportion equation
921,356 : 1,421,397 = 1,421,397 : x - Step 2: Convert to fraction form
921,356/1,421,397 = 1,421,397/x - Step 3: Cross multiply
921,356x = 1,421,397 × 1,421,397 - Step 4: Simplify right side
921,356x = 2,020,369,431,609 - Step 5: Solve for x
x = 2,020,369,431,609/921,356 - Step 6: Final answer
x = 2,192,821.70
Related Problems
Find third proportional to 460,678 and 710,698.50
Half scale
Find third proportional to 1,842,712 and 2,842,794
Double scale
Find third proportional to 921,358 and 1,421,400
Similar ratio
Find third proportional to 1,382,034 and 2,132,095.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.