Finding the Fourth Proportional to 396,481.87, 546,742.81 and 339,310.96
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Solution
The fourth proportional to 396,481.87, 546,742.81 and 339,310.96 is: 467,904.94
Step by Step Solution
- Step 1: Write the proportion equation
396,481.87 : 546,742.81 = 339,310.96 : x - Step 2: Convert to fraction form
396,481.87/546,742.81 = 339,310.96/x - Step 3: Cross multiply
396,481.87x = 546,742.81 × 339,310.96 - Step 4: Simplify right side
396,481.87x = 185,515,826,791.48 - Step 5: Solve for x
x = 185,515,826,791.48/396,481.87 - Step 6: Final answer
x = 467,904.94
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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.