Finding the Fourth Proportional to 691,476.88, 1,036,537.14 and 331,545.70
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Solution
The fourth proportional to 691,476.88, 1,036,537.14 and 331,545.70 is: 496,993.38
Step by Step Solution
- Step 1: Write the proportion equation
691,476.88 : 1,036,537.14 = 331,545.70 : x - Step 2: Convert to fraction form
691,476.88/1,036,537.14 = 331,545.70/x - Step 3: Cross multiply
691,476.88x = 1,036,537.14 × 331,545.70 - Step 4: Simplify right side
691,476.88x = 343,659,431,657.30 - Step 5: Solve for x
x = 343,659,431,657.30/691,476.88 - Step 6: Final answer
x = 496,993.38
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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.