Finding the Fourth Proportional to 703,745.38, 1,055,456.16 and 419,516.18
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Solution
The fourth proportional to 703,745.38, 1,055,456.16 and 419,516.18 is: 629,177.75
Step by Step Solution
- Step 1: Write the proportion equation
703,745.38 : 1,055,456.16 = 419,516.18 : x - Step 2: Convert to fraction form
703,745.38/1,055,456.16 = 419,516.18/x - Step 3: Cross multiply
703,745.38x = 1,055,456.16 × 419,516.18 - Step 4: Simplify right side
703,745.38x = 442,780,936,400.67 - Step 5: Solve for x
x = 442,780,936,400.67/703,745.38 - Step 6: Final answer
x = 629,177.75
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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.