Finding the Third Proportional to 311,208.75 and 678,970.69
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Solution
The third proportional to 311,208.75 and 678,970.69 is: 1,481,324.66
Step by Step Solution
- Step 1: Write the proportion equation
311,208.75 : 678,970.69 = 678,970.69 : x - Step 2: Convert to fraction form
311,208.75/678,970.69 = 678,970.69/x - Step 3: Cross multiply
311,208.75x = 678,970.69 × 678,970.69 - Step 4: Simplify right side
311,208.75x = 461,001,194,484.22 - Step 5: Solve for x
x = 461,001,194,484.22/311,208.75 - Step 6: Final answer
x = 1,481,324.66
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.