Finding the Fourth Proportional to 412,641.17, 618,961.76 and 272,366.99
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Solution
The fourth proportional to 412,641.17, 618,961.76 and 272,366.99 is: 408,550.48
Step by Step Solution
- Step 1: Write the proportion equation
412,641.17 : 618,961.76 = 272,366.99 : x - Step 2: Convert to fraction form
412,641.17/618,961.76 = 272,366.99/x - Step 3: Cross multiply
412,641.17x = 618,961.76 × 272,366.99 - Step 4: Simplify right side
412,641.17x = 168,584,747,039.66 - Step 5: Solve for x
x = 168,584,747,039.66/412,641.17 - Step 6: Final answer
x = 408,550.48
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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.