Finding the Fourth Proportional to 356,629.63, 491,861.92 and 313,516.94
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Solution
The fourth proportional to 356,629.63, 491,861.92 and 313,516.94 is: 432,401.09
Step by Step Solution
- Step 1: Write the proportion equation
356,629.63 : 491,861.92 = 313,516.94 : x - Step 2: Convert to fraction form
356,629.63/491,861.92 = 313,516.94/x - Step 3: Cross multiply
356,629.63x = 491,861.92 × 313,516.94 - Step 4: Simplify right side
356,629.63x = 154,207,042,493.34 - Step 5: Solve for x
x = 154,207,042,493.34/356,629.63 - Step 6: Final answer
x = 432,401.09
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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.