Finding the Fourth Proportional to 494,745.13, 682,748.49 and 279,880.63
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Solution
The fourth proportional to 494,745.13, 682,748.49 and 279,880.63 is: 386,235.38
Step by Step Solution
- Step 1: Write the proportion equation
494,745.13 : 682,748.49 = 279,880.63 : x - Step 2: Convert to fraction form
494,745.13/682,748.49 = 279,880.63/x - Step 3: Cross multiply
494,745.13x = 682,748.49 × 279,880.63 - Step 4: Simplify right side
494,745.13x = 191,088,072,699.60 - Step 5: Solve for x
x = 191,088,072,699.60/494,745.13 - Step 6: Final answer
x = 386,235.38
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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.