Finding the Fourth Proportional to 2,647,615.62, 3,970,915.50 and 1,028,382.66
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Solution
The fourth proportional to 2,647,615.62, 3,970,915.50 and 1,028,382.66 is: 1,542,376.70
Step by Step Solution
- Step 1: Write the proportion equation
2,647,615.62 : 3,970,915.50 = 1,028,382.66 : x - Step 2: Convert to fraction form
2,647,615.62/3,970,915.50 = 1,028,382.66/x - Step 3: Cross multiply
2,647,615.62x = 3,970,915.50 × 1,028,382.66 - Step 4: Simplify right side
2,647,615.62x = 4,083,620,644,525.23 - Step 5: Solve for x
x = 4,083,620,644,525.23/2,647,615.62 - Step 6: Final answer
x = 1,542,376.70
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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.