Finding the Fourth Proportional to 792,821.52, 1,189,413.84 and 343,617.84
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Solution
The fourth proportional to 792,821.52, 1,189,413.84 and 343,617.84 is: 515,505.45
Step by Step Solution
- Step 1: Write the proportion equation
792,821.52 : 1,189,413.84 = 343,617.84 : x - Step 2: Convert to fraction form
792,821.52/1,189,413.84 = 343,617.84/x - Step 3: Cross multiply
792,821.52x = 1,189,413.84 × 343,617.84 - Step 4: Simplify right side
792,821.52x = 408,703,814,566.91 - Step 5: Solve for x
x = 408,703,814,566.91/792,821.52 - Step 6: Final answer
x = 515,505.45
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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.