Finding the Fourth Proportional to 1,371,608.70, 2,057,413.05 and 1,278,296.70
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Solution
The fourth proportional to 1,371,608.70, 2,057,413.05 and 1,278,296.70 is: 1,917,445.05
Step by Step Solution
- Step 1: Write the proportion equation
1,371,608.70 : 2,057,413.05 = 1,278,296.70 : x - Step 2: Convert to fraction form
1,371,608.70/2,057,413.05 = 1,278,296.70/x - Step 3: Cross multiply
1,371,608.70x = 2,057,413.05 × 1,278,296.70 - Step 4: Simplify right side
1,371,608.70x = 2,629,984,312,351.94 - Step 5: Solve for x
x = 2,629,984,312,351.94/1,371,608.70 - Step 6: Final answer
x = 1,917,445.05
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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.