Finding the Fourth Proportional to 412,638.17, 618,957.25 and 272,363.99
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Solution
The fourth proportional to 412,638.17, 618,957.25 and 272,363.99 is: 408,545.98
Step by Step Solution
- Step 1: Write the proportion equation
412,638.17 : 618,957.25 = 272,363.99 : x - Step 2: Convert to fraction form
412,638.17/618,957.25 = 272,363.99/x - Step 3: Cross multiply
412,638.17x = 618,957.25 × 272,363.99 - Step 4: Simplify right side
412,638.17x = 168,581,662,473.73 - Step 5: Solve for x
x = 168,581,662,473.73/412,638.17 - Step 6: Final answer
x = 408,545.98
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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.