Finding the Fourth Proportional to 678,188.44, 935,902.62 and 376,382.44
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Solution
The fourth proportional to 678,188.44, 935,902.62 and 376,382.44 is: 519,409.20
Step by Step Solution
- Step 1: Write the proportion equation
678,188.44 : 935,902.62 = 376,382.44 : x - Step 2: Convert to fraction form
678,188.44/935,902.62 = 376,382.44/x - Step 3: Cross multiply
678,188.44x = 935,902.62 × 376,382.44 - Step 4: Simplify right side
678,188.44x = 352,257,311,717.99 - Step 5: Solve for x
x = 352,257,311,717.99/678,188.44 - Step 6: Final answer
x = 519,409.20
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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.