Finding the Fourth Proportional to 814,516.24, 1,221,481.56 and 281,892.72
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Solution
The fourth proportional to 814,516.24, 1,221,481.56 and 281,892.72 is: 422,737.75
Step by Step Solution
- Step 1: Write the proportion equation
814,516.24 : 1,221,481.56 = 281,892.72 : x - Step 2: Convert to fraction form
814,516.24/1,221,481.56 = 281,892.72/x - Step 3: Cross multiply
814,516.24x = 1,221,481.56 × 281,892.72 - Step 4: Simplify right side
814,516.24x = 344,326,759,378.24 - Step 5: Solve for x
x = 344,326,759,378.24/814,516.24 - Step 6: Final answer
x = 422,737.75
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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.