Finding the Fourth Proportional to 393,704.68, 590,634.80 and 144,388.84
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Solution
The fourth proportional to 393,704.68, 590,634.80 and 144,388.84 is: 216,611.79
Step by Step Solution
- Step 1: Write the proportion equation
393,704.68 : 590,634.80 = 144,388.84 : x - Step 2: Convert to fraction form
393,704.68/590,634.80 = 144,388.84/x - Step 3: Cross multiply
393,704.68x = 590,634.80 × 144,388.84 - Step 4: Simplify right side
393,704.68x = 85,281,073,635.63 - Step 5: Solve for x
x = 85,281,073,635.63/393,704.68 - Step 6: Final answer
x = 216,611.79
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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.