Finding the Fourth Proportional to 543,945.38, 815,724.99 and 159,586.97
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Solution
The fourth proportional to 543,945.38, 815,724.99 and 159,586.97 is: 239,323.80
Step by Step Solution
- Step 1: Write the proportion equation
543,945.38 : 815,724.99 = 159,586.97 : x - Step 2: Convert to fraction form
543,945.38/815,724.99 = 159,586.97/x - Step 3: Cross multiply
543,945.38x = 815,724.99 × 159,586.97 - Step 4: Simplify right side
543,945.38x = 130,179,075,428.76 - Step 5: Solve for x
x = 130,179,075,428.76/543,945.38 - Step 6: Final answer
x = 239,323.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.