Finding the Fourth Proportional to 818,413.96, 1,129,020.10 and 635,876.68
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Solution
The fourth proportional to 818,413.96, 1,129,020.10 and 635,876.68 is: 877,205.90
Step by Step Solution
- Step 1: Write the proportion equation
818,413.96 : 1,129,020.10 = 635,876.68 : x - Step 2: Convert to fraction form
818,413.96/1,129,020.10 = 635,876.68/x - Step 3: Cross multiply
818,413.96x = 1,129,020.10 × 635,876.68 - Step 4: Simplify right side
818,413.96x = 717,917,554,122.75 - Step 5: Solve for x
x = 717,917,554,122.75/818,413.96 - Step 6: Final answer
x = 877,205.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.