Finding the Fourth Proportional to 394,064.04, 543,619.60 and 378,786.63
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Solution
The fourth proportional to 394,064.04, 543,619.60 and 378,786.63 is: 522,544.09
Step by Step Solution
- Step 1: Write the proportion equation
394,064.04 : 543,619.60 = 378,786.63 : x - Step 2: Convert to fraction form
394,064.04/543,619.60 = 378,786.63/x - Step 3: Cross multiply
394,064.04x = 543,619.60 × 378,786.63 - Step 4: Simplify right side
394,064.04x = 205,915,836,285.95 - Step 5: Solve for x
x = 205,915,836,285.95/394,064.04 - Step 6: Final answer
x = 522,544.09
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.