Finding the Third Proportional to 388,317 and 830,622
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Solution
The third proportional to 388,317 and 830,622 is: 1,776,725.99
Step by Step Solution
- Step 1: Write the proportion equation
388,317 : 830,622 = 830,622 : x - Step 2: Convert to fraction form
388,317/830,622 = 830,622/x - Step 3: Cross multiply
388,317x = 830,622 × 830,622 - Step 4: Simplify right side
388,317x = 689,932,906,884 - Step 5: Solve for x
x = 689,932,906,884/388,317 - Step 6: Final answer
x = 1,776,725.99
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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.