Finding the Fourth Proportional to 638,164.20, 880,662.42 and 351,684.48
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Solution
The fourth proportional to 638,164.20, 880,662.42 and 351,684.48 is: 485,322.28
Step by Step Solution
- Step 1: Write the proportion equation
638,164.20 : 880,662.42 = 351,684.48 : x - Step 2: Convert to fraction form
638,164.20/880,662.42 = 351,684.48/x - Step 3: Cross multiply
638,164.20x = 880,662.42 × 351,684.48 - Step 4: Simplify right side
638,164.20x = 309,715,305,233.24 - Step 5: Solve for x
x = 309,715,305,233.24/638,164.20 - Step 6: Final answer
x = 485,322.28
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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.