Finding the Fourth Proportional to 512,234.56, 706,976.21 and 305,516.19
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Solution
The fourth proportional to 512,234.56, 706,976.21 and 305,516.19 is: 421,667.52
Step by Step Solution
- Step 1: Write the proportion equation
512,234.56 : 706,976.21 = 305,516.19 : x - Step 2: Convert to fraction form
512,234.56/706,976.21 = 305,516.19/x - Step 3: Cross multiply
512,234.56x = 706,976.21 × 305,516.19 - Step 4: Simplify right side
512,234.56x = 215,992,676,572.26 - Step 5: Solve for x
x = 215,992,676,572.26/512,234.56 - Step 6: Final answer
x = 421,667.52
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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.