Finding the Fourth Proportional to 486,363.62, 671,193.11 and 305,083.19
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Solution
The fourth proportional to 486,363.62, 671,193.11 and 305,083.19 is: 421,021.90
Step by Step Solution
- Step 1: Write the proportion equation
486,363.62 : 671,193.11 = 305,083.19 : x - Step 2: Convert to fraction form
486,363.62/671,193.11 = 305,083.19/x - Step 3: Cross multiply
486,363.62x = 671,193.11 × 305,083.19 - Step 4: Simplify right side
486,363.62x = 204,769,737,545.51 - Step 5: Solve for x
x = 204,769,737,545.51/486,363.62 - Step 6: Final answer
x = 421,021.90
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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.