Finding the Fourth Proportional to 2,929,825.68, 4,043,413.86 and 1,640,642.64
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Solution
The fourth proportional to 2,929,825.68, 4,043,413.86 and 1,640,642.64 is: 2,264,229.31
Step by Step Solution
- Step 1: Write the proportion equation
2,929,825.68 : 4,043,413.86 = 1,640,642.64 : x - Step 2: Convert to fraction form
2,929,825.68/4,043,413.86 = 1,640,642.64/x - Step 3: Cross multiply
2,929,825.68x = 4,043,413.86 × 1,640,642.64 - Step 4: Simplify right side
2,929,825.68x = 6,633,797,189,882.99 - Step 5: Solve for x
x = 6,633,797,189,882.99/2,929,825.68 - Step 6: Final answer
x = 2,264,229.31
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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.