Finding the Fourth Proportional to 3,879,108.43, 5,813,431.26 and 1,961,372.55
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Solution
The fourth proportional to 3,879,108.43, 5,813,431.26 and 1,961,372.55 is: 2,939,413.71
Step by Step Solution
- Step 1: Write the proportion equation
3,879,108.43 : 5,813,431.26 = 1,961,372.55 : x - Step 2: Convert to fraction form
3,879,108.43/5,813,431.26 = 1,961,372.55/x - Step 3: Cross multiply
3,879,108.43x = 5,813,431.26 × 1,961,372.55 - Step 4: Simplify right side
3,879,108.43x = 11,402,304,494,675.91 - Step 5: Solve for x
x = 11,402,304,494,675.91/3,879,108.43 - Step 6: Final answer
x = 2,939,413.71
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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.