Finding the Fourth Proportional to 326,624.87, 489,477.83 and 259,768.28
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Solution
The fourth proportional to 326,624.87, 489,477.83 and 259,768.28 is: 389,286.99
Step by Step Solution
- Step 1: Write the proportion equation
326,624.87 : 489,477.83 = 259,768.28 : x - Step 2: Convert to fraction form
326,624.87/489,477.83 = 259,768.28/x - Step 3: Cross multiply
326,624.87x = 489,477.83 × 259,768.28 - Step 4: Simplify right side
326,624.87x = 127,150,810,251.00 - Step 5: Solve for x
x = 127,150,810,251.00/326,624.87 - Step 6: Final answer
x = 389,286.99
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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.