Finding the Fourth Proportional to 3,674,578.98, 5,511,512.09 and 1,115,816.08
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Solution
The fourth proportional to 3,674,578.98, 5,511,512.09 and 1,115,816.08 is: 1,673,615.90
Step by Step Solution
- Step 1: Write the proportion equation
3,674,578.98 : 5,511,512.09 = 1,115,816.08 : x - Step 2: Convert to fraction form
3,674,578.98/5,511,512.09 = 1,115,816.08/x - Step 3: Cross multiply
3,674,578.98x = 5,511,512.09 × 1,115,816.08 - Step 4: Simplify right side
3,674,578.98x = 6,149,833,804,147.17 - Step 5: Solve for x
x = 6,149,833,804,147.17/3,674,578.98 - Step 6: Final answer
x = 1,673,615.90
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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.