Finding the Fourth Proportional to 396,725.48, 547,240.74 and 235,474.28
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Solution
The fourth proportional to 396,725.48, 547,240.74 and 235,474.28 is: 324,811.80
Step by Step Solution
- Step 1: Write the proportion equation
396,725.48 : 547,240.74 = 235,474.28 : x - Step 2: Convert to fraction form
396,725.48/547,240.74 = 235,474.28/x - Step 3: Cross multiply
396,725.48x = 547,240.74 × 235,474.28 - Step 4: Simplify right side
396,725.48x = 128,861,119,238.17 - Step 5: Solve for x
x = 128,861,119,238.17/396,725.48 - Step 6: Final answer
x = 324,811.80
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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.