Finding the Fourth Proportional to 3,781,431.66, 5,218,391.91 and 2,062,589.07
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Solution
The fourth proportional to 3,781,431.66, 5,218,391.91 and 2,062,589.07 is: 2,846,381.76
Step by Step Solution
- Step 1: Write the proportion equation
3,781,431.66 : 5,218,391.91 = 2,062,589.07 : x - Step 2: Convert to fraction form
3,781,431.66/5,218,391.91 = 2,062,589.07/x - Step 3: Cross multiply
3,781,431.66x = 5,218,391.91 × 2,062,589.07 - Step 4: Simplify right side
3,781,431.66x = 10,763,398,116,542.42 - Step 5: Solve for x
x = 10,763,398,116,542.42/3,781,431.66 - Step 6: Final answer
x = 2,846,381.76
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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.