Finding the Fourth Proportional to 860,246.65, 1,290,286.60 and 261,213.08
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Solution
The fourth proportional to 860,246.65, 1,290,286.60 and 261,213.08 is: 391,794.29
Step by Step Solution
- Step 1: Write the proportion equation
860,246.65 : 1,290,286.60 = 261,213.08 : x - Step 2: Convert to fraction form
860,246.65/1,290,286.60 = 261,213.08/x - Step 3: Cross multiply
860,246.65x = 1,290,286.60 × 261,213.08 - Step 4: Simplify right side
860,246.65x = 337,039,729,111.23 - Step 5: Solve for x
x = 337,039,729,111.23/860,246.65 - Step 6: Final answer
x = 391,794.29
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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.