Finding the Fourth Proportional to 2,278,212.39, 3,415,631.36 and 1,379,442.87
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Solution
The fourth proportional to 2,278,212.39, 3,415,631.36 and 1,379,442.87 is: 2,068,142.70
Step by Step Solution
- Step 1: Write the proportion equation
2,278,212.39 : 3,415,631.36 = 1,379,442.87 : x - Step 2: Convert to fraction form
2,278,212.39/3,415,631.36 = 1,379,442.87/x - Step 3: Cross multiply
2,278,212.39x = 3,415,631.36 × 1,379,442.87 - Step 4: Simplify right side
2,278,212.39x = 4,711,668,319,203.19 - Step 5: Solve for x
x = 4,711,668,319,203.19/2,278,212.39 - Step 6: Final answer
x = 2,068,142.70
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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.