Finding the Fourth Proportional to 3,820,647.48, 5,272,630.26 and 2,189,369.85
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Solution
The fourth proportional to 3,820,647.48, 5,272,630.26 and 2,189,369.85 is: 3,021,408.75
Step by Step Solution
- Step 1: Write the proportion equation
3,820,647.48 : 5,272,630.26 = 2,189,369.85 : x - Step 2: Convert to fraction form
3,820,647.48/5,272,630.26 = 2,189,369.85/x - Step 3: Cross multiply
3,820,647.48x = 5,272,630.26 × 2,189,369.85 - Step 4: Simplify right side
3,820,647.48x = 11,543,737,721,441.66 - Step 5: Solve for x
x = 11,543,737,721,441.66/3,820,647.48 - Step 6: Final answer
x = 3,021,408.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.