Finding the Fourth Proportional to 1,093,413.18, 1,640,236.42 and 462,390.78
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Solution
The fourth proportional to 1,093,413.18, 1,640,236.42 and 462,390.78 is: 693,635.50
Step by Step Solution
- Step 1: Write the proportion equation
1,093,413.18 : 1,640,236.42 = 462,390.78 : x - Step 2: Convert to fraction form
1,093,413.18/1,640,236.42 = 462,390.78/x - Step 3: Cross multiply
1,093,413.18x = 1,640,236.42 × 462,390.78 - Step 4: Simplify right side
1,093,413.18x = 758,430,197,628.21 - Step 5: Solve for x
x = 758,430,197,628.21/1,093,413.18 - Step 6: Final answer
x = 693,635.50
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1.5x scale
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.