Finding the Fourth Proportional to 638,553.26, 881,243.21 and 352,072.91
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Solution
The fourth proportional to 638,553.26, 881,243.21 and 352,072.91 is: 485,882.51
Step by Step Solution
- Step 1: Write the proportion equation
638,553.26 : 881,243.21 = 352,072.91 : x - Step 2: Convert to fraction form
638,553.26/881,243.21 = 352,072.91/x - Step 3: Cross multiply
638,553.26x = 881,243.21 × 352,072.91 - Step 4: Simplify right side
638,553.26x = 310,261,861,362.44 - Step 5: Solve for x
x = 310,261,861,362.44/638,553.26 - Step 6: Final answer
x = 485,882.51
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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.