Finding the Fourth Proportional to 505,409.44, 753,516.17 and 448,611.70
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Solution
The fourth proportional to 505,409.44, 753,516.17 and 448,611.70 is: 668,836.28
Step by Step Solution
- Step 1: Write the proportion equation
505,409.44 : 753,516.17 = 448,611.70 : x - Step 2: Convert to fraction form
505,409.44/753,516.17 = 448,611.70/x - Step 3: Cross multiply
505,409.44x = 753,516.17 × 448,611.70 - Step 4: Simplify right side
505,409.44x = 338,036,170,001.19 - Step 5: Solve for x
x = 338,036,170,001.19/505,409.44 - Step 6: Final answer
x = 668,836.28
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.