Finding the Fourth Proportional to 638,696.13, 881,413.41 and 412,735.29
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Solution
The fourth proportional to 638,696.13, 881,413.41 and 412,735.29 is: 569,582.94
Step by Step Solution
- Step 1: Write the proportion equation
638,696.13 : 881,413.41 = 412,735.29 : x - Step 2: Convert to fraction form
638,696.13/881,413.41 = 412,735.29/x - Step 3: Cross multiply
638,696.13x = 881,413.41 × 412,735.29 - Step 4: Simplify right side
638,696.13x = 363,790,419,386.24 - Step 5: Solve for x
x = 363,790,419,386.24/638,696.13 - Step 6: Final answer
x = 569,582.94
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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.