Finding the Fourth Proportional to 638,072.70, 880,578.99 and 351,592.44
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Solution
The fourth proportional to 638,072.70, 880,578.99 and 351,592.44 is: 485,218.87
Step by Step Solution
- Step 1: Write the proportion equation
638,072.70 : 880,578.99 = 351,592.44 : x - Step 2: Convert to fraction form
638,072.70/880,578.99 = 351,592.44/x - Step 3: Cross multiply
638,072.70x = 880,578.99 × 351,592.44 - Step 4: Simplify right side
638,072.70x = 309,604,915,706.84 - Step 5: Solve for x
x = 309,604,915,706.84/638,072.70 - Step 6: Final answer
x = 485,218.87
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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.