Finding the Fourth Proportional to 394,918.44, 544,420.62 and 281,544.36
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Solution
The fourth proportional to 394,918.44, 544,420.62 and 281,544.36 is: 388,127.12
Step by Step Solution
- Step 1: Write the proportion equation
394,918.44 : 544,420.62 = 281,544.36 : x - Step 2: Convert to fraction form
394,918.44/544,420.62 = 281,544.36/x - Step 3: Cross multiply
394,918.44x = 544,420.62 × 281,544.36 - Step 4: Simplify right side
394,918.44x = 153,278,555,028.70 - Step 5: Solve for x
x = 153,278,555,028.70/394,918.44 - Step 6: Final answer
x = 388,127.12
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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.