Finding the Fourth Proportional to 1,077,086.99, 1,486,413.21 and 618,285.38
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Solution
The fourth proportional to 1,077,086.99, 1,486,413.21 and 618,285.38 is: 853,252.86
Step by Step Solution
- Step 1: Write the proportion equation
1,077,086.99 : 1,486,413.21 = 618,285.38 : x - Step 2: Convert to fraction form
1,077,086.99/1,486,413.21 = 618,285.38/x - Step 3: Cross multiply
1,077,086.99x = 1,486,413.21 × 618,285.38 - Step 4: Simplify right side
1,077,086.99x = 919,027,548,949.80 - Step 5: Solve for x
x = 919,027,548,949.80/1,077,086.99 - Step 6: Final answer
x = 853,252.86
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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.