Finding the Fourth Proportional to 638,747.77, 958,121.79 and 259,874.68
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Solution
The fourth proportional to 638,747.77, 958,121.79 and 259,874.68 is: 389,812.07
Step by Step Solution
- Step 1: Write the proportion equation
638,747.77 : 958,121.79 = 259,874.68 : x - Step 2: Convert to fraction form
638,747.77/958,121.79 = 259,874.68/x - Step 3: Cross multiply
638,747.77x = 958,121.79 × 259,874.68 - Step 4: Simplify right side
638,747.77x = 248,991,593,577.28 - Step 5: Solve for x
x = 248,991,593,577.28/638,747.77 - Step 6: Final answer
x = 389,812.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.