Finding the Third Proportional to 690,579 and 1,509,246
Calculator
Solution
The third proportional to 690,579 and 1,509,246 is: 3,298,425.65
Step by Step Solution
- Step 1: Write the proportion equation
690,579 : 1,509,246 = 1,509,246 : x - Step 2: Convert to fraction form
690,579/1,509,246 = 1,509,246/x - Step 3: Cross multiply
690,579x = 1,509,246 × 1,509,246 - Step 4: Simplify right side
690,579x = 2,277,823,488,516 - Step 5: Solve for x
x = 2,277,823,488,516/690,579 - Step 6: Final answer
x = 3,298,425.65
Related Problems
Find third proportional to 345,289.50 and 754,623
Half scale
Find third proportional to 1,381,158 and 3,018,492
Double scale
Find third proportional to 690,581 and 1,509,250
Similar ratio
Find third proportional to 1,035,868.50 and 2,263,869
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.