Finding the Fourth Proportional to 394,120.47, 543,691.40 and 232,897.53
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Solution
The fourth proportional to 394,120.47, 543,691.40 and 232,897.53 is: 321,283.45
Step by Step Solution
- Step 1: Write the proportion equation
394,120.47 : 543,691.40 = 232,897.53 : x - Step 2: Convert to fraction form
394,120.47/543,691.40 = 232,897.53/x - Step 3: Cross multiply
394,120.47x = 543,691.40 × 232,897.53 - Step 4: Simplify right side
394,120.47x = 126,624,382,977.75 - Step 5: Solve for x
x = 126,624,382,977.75/394,120.47 - Step 6: Final answer
x = 321,283.45
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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.