Finding the Fourth Proportional to 2,230,717.26, 3,078,409.29 and 1,212,121.98
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Solution
The fourth proportional to 2,230,717.26, 3,078,409.29 and 1,212,121.98 is: 1,672,738.91
Step by Step Solution
- Step 1: Write the proportion equation
2,230,717.26 : 3,078,409.29 = 1,212,121.98 : x - Step 2: Convert to fraction form
2,230,717.26/3,078,409.29 = 1,212,121.98/x - Step 3: Cross multiply
2,230,717.26x = 3,078,409.29 × 1,212,121.98 - Step 4: Simplify right side
2,230,717.26x = 3,731,407,563,845.19 - Step 5: Solve for x
x = 3,731,407,563,845.19/2,230,717.26 - Step 6: Final answer
x = 1,672,738.91
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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.