Finding the Fourth Proportional to 3,992,396.85, 5,986,408.28 and 1,966,185.09
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Solution
The fourth proportional to 3,992,396.85, 5,986,408.28 and 1,966,185.09 is: 2,948,200.58
Step by Step Solution
- Step 1: Write the proportion equation
3,992,396.85 : 5,986,408.28 = 1,966,185.09 : x - Step 2: Convert to fraction form
3,992,396.85/5,986,408.28 = 1,966,185.09/x - Step 3: Cross multiply
3,992,396.85x = 5,986,408.28 × 1,966,185.09 - Step 4: Simplify right side
3,992,396.85x = 11,770,386,692,957.62 - Step 5: Solve for x
x = 11,770,386,692,957.62/3,992,396.85 - Step 6: Final answer
x = 2,948,200.58
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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.