Finding the Fourth Proportional to 406,960.92, 561,639.74 and 225,731.41
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Solution
The fourth proportional to 406,960.92, 561,639.74 and 225,731.41 is: 311,528.02
Step by Step Solution
- Step 1: Write the proportion equation
406,960.92 : 561,639.74 = 225,731.41 : x - Step 2: Convert to fraction form
406,960.92/561,639.74 = 225,731.41/x - Step 3: Cross multiply
406,960.92x = 561,639.74 × 225,731.41 - Step 4: Simplify right side
406,960.92x = 126,779,727,889.48 - Step 5: Solve for x
x = 126,779,727,889.48/406,960.92 - Step 6: Final answer
x = 311,528.02
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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.