Finding the Fourth Proportional to 4,278,680.60, 6,417,971.42 and 1,040,236.61
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Solution
The fourth proportional to 4,278,680.60, 6,417,971.42 and 1,040,236.61 is: 1,560,342.88
Step by Step Solution
- Step 1: Write the proportion equation
4,278,680.60 : 6,417,971.42 = 1,040,236.61 : x - Step 2: Convert to fraction form
4,278,680.60/6,417,971.42 = 1,040,236.61/x - Step 3: Cross multiply
4,278,680.60x = 6,417,971.42 × 1,040,236.61 - Step 4: Simplify right side
4,278,680.60x = 6,676,208,795,726.65 - Step 5: Solve for x
x = 6,676,208,795,726.65/4,278,680.60 - Step 6: Final answer
x = 1,560,342.88
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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.