Finding the Fourth Proportional to 520,516.44, 718,318.44 and 305,659.08
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Solution
The fourth proportional to 520,516.44, 718,318.44 and 305,659.08 is: 421,812.91
Step by Step Solution
- Step 1: Write the proportion equation
520,516.44 : 718,318.44 = 305,659.08 : x - Step 2: Convert to fraction form
520,516.44/718,318.44 = 305,659.08/x - Step 3: Cross multiply
520,516.44x = 718,318.44 × 305,659.08 - Step 4: Simplify right side
520,516.44x = 219,560,553,517.44 - Step 5: Solve for x
x = 219,560,553,517.44/520,516.44 - Step 6: Final answer
x = 421,812.91
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.