Finding the Fourth Proportional to 2,631,316.15, 3,948,548.82 and 1,135,408.15
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Solution
The fourth proportional to 2,631,316.15, 3,948,548.82 and 1,135,408.15 is: 1,703,791.66
Step by Step Solution
- Step 1: Write the proportion equation
2,631,316.15 : 3,948,548.82 = 1,135,408.15 : x - Step 2: Convert to fraction form
2,631,316.15/3,948,548.82 = 1,135,408.15/x - Step 3: Cross multiply
2,631,316.15x = 3,948,548.82 × 1,135,408.15 - Step 4: Simplify right side
2,631,316.15x = 4,483,214,511,578.79 - Step 5: Solve for x
x = 4,483,214,511,578.79/2,631,316.15 - Step 6: Final answer
x = 1,703,791.66
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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.