Finding the Fourth Proportional to 396,730.36, 547,861.56 and 276,201.22
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Solution
The fourth proportional to 396,730.36, 547,861.56 and 276,201.22 is: 381,417.82
Step by Step Solution
- Step 1: Write the proportion equation
396,730.36 : 547,861.56 = 276,201.22 : x - Step 2: Convert to fraction form
396,730.36/547,861.56 = 276,201.22/x - Step 3: Cross multiply
396,730.36x = 547,861.56 × 276,201.22 - Step 4: Simplify right side
396,730.36x = 151,320,027,142.79 - Step 5: Solve for x
x = 151,320,027,142.79/396,730.36 - Step 6: Final answer
x = 381,417.82
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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.