Finding the Fourth Proportional to 2,261,684.70, 3,121,148.97 and 1,229,192.55
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Solution
The fourth proportional to 2,261,684.70, 3,121,148.97 and 1,229,192.55 is: 1,696,298.81
Step by Step Solution
- Step 1: Write the proportion equation
2,261,684.70 : 3,121,148.97 = 1,229,192.55 : x - Step 2: Convert to fraction form
2,261,684.70/3,121,148.97 = 1,229,192.55/x - Step 3: Cross multiply
2,261,684.70x = 3,121,148.97 × 1,229,192.55 - Step 4: Simplify right side
2,261,684.70x = 3,836,493,061,364.17 - Step 5: Solve for x
x = 3,836,493,061,364.17/2,261,684.70 - Step 6: Final answer
x = 1,696,298.81
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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.