Finding the Fourth Proportional to 2,278,933.36, 3,144,578.65 and 1,311,876.79
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Solution
The fourth proportional to 2,278,933.36, 3,144,578.65 and 1,311,876.79 is: 1,810,188.84
Step by Step Solution
- Step 1: Write the proportion equation
2,278,933.36 : 3,144,578.65 = 1,311,876.79 : x - Step 2: Convert to fraction form
2,278,933.36/3,144,578.65 = 1,311,876.79/x - Step 3: Cross multiply
2,278,933.36x = 3,144,578.65 × 1,311,876.79 - Step 4: Simplify right side
2,278,933.36x = 4,125,299,745,264.53 - Step 5: Solve for x
x = 4,125,299,745,264.53/2,278,933.36 - Step 6: Final answer
x = 1,810,188.84
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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.