Finding the Fourth Proportional to 3,511,775.84, 5,267,665.80 and 987,431.09
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Solution
The fourth proportional to 3,511,775.84, 5,267,665.80 and 987,431.09 is: 1,481,147.21
Step by Step Solution
- Step 1: Write the proportion equation
3,511,775.84 : 5,267,665.80 = 987,431.09 : x - Step 2: Convert to fraction form
3,511,775.84/5,267,665.80 = 987,431.09/x - Step 3: Cross multiply
3,511,775.84x = 5,267,665.80 × 987,431.09 - Step 4: Simplify right side
3,511,775.84x = 5,201,456,982,649.72 - Step 5: Solve for x
x = 5,201,456,982,649.72/3,511,775.84 - Step 6: Final answer
x = 1,481,147.21
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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.