Finding the Fourth Proportional to 489,427.14, 675,414.08 and 274,571.84
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Solution
The fourth proportional to 489,427.14, 675,414.08 and 274,571.84 is: 378,911.73
Step by Step Solution
- Step 1: Write the proportion equation
489,427.14 : 675,414.08 = 274,571.84 : x - Step 2: Convert to fraction form
489,427.14/675,414.08 = 274,571.84/x - Step 3: Cross multiply
489,427.14x = 675,414.08 × 274,571.84 - Step 4: Simplify right side
489,427.14x = 185,449,688,052.83 - Step 5: Solve for x
x = 185,449,688,052.83/489,427.14 - Step 6: Final answer
x = 378,911.73
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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.