Finding the Fourth Proportional to 396,452.63, 547,558.74 and 261,091.62
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Solution
The fourth proportional to 396,452.63, 547,558.74 and 261,091.62 is: 360,605.50
Step by Step Solution
- Step 1: Write the proportion equation
396,452.63 : 547,558.74 = 261,091.62 : x - Step 2: Convert to fraction form
396,452.63/547,558.74 = 261,091.62/x - Step 3: Cross multiply
396,452.63x = 547,558.74 × 261,091.62 - Step 4: Simplify right side
396,452.63x = 142,962,998,471.76 - Step 5: Solve for x
x = 142,962,998,471.76/396,452.63 - Step 6: Final answer
x = 360,605.50
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1.5x scale
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.