Finding the Fourth Proportional to 3,938,449.73, 5,907,149.66 and 1,098,324.05
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Solution
The fourth proportional to 3,938,449.73, 5,907,149.66 and 1,098,324.05 is: 1,647,339.68
Step by Step Solution
- Step 1: Write the proportion equation
3,938,449.73 : 5,907,149.66 = 1,098,324.05 : x - Step 2: Convert to fraction form
3,938,449.73/5,907,149.66 = 1,098,324.05/x - Step 3: Cross multiply
3,938,449.73x = 5,907,149.66 × 1,098,324.05 - Step 4: Simplify right side
3,938,449.73x = 6,487,964,511,737.38 - Step 5: Solve for x
x = 6,487,964,511,737.38/3,938,449.73 - Step 6: Final answer
x = 1,647,339.68
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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.