Finding the Fourth Proportional to 393,717.43, 590,670.21 and 127,478.23
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Solution
The fourth proportional to 393,717.43, 590,670.21 and 127,478.23 is: 191,247.80
Step by Step Solution
- Step 1: Write the proportion equation
393,717.43 : 590,670.21 = 127,478.23 : x - Step 2: Convert to fraction form
393,717.43/590,670.21 = 127,478.23/x - Step 3: Cross multiply
393,717.43x = 590,670.21 × 127,478.23 - Step 4: Simplify right side
393,717.43x = 75,297,592,884.53 - Step 5: Solve for x
x = 75,297,592,884.53/393,717.43 - Step 6: Final answer
x = 191,247.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.