Finding the Fourth Proportional to 490,677.42, 677,138.58 and 272,889.14
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Solution
The fourth proportional to 490,677.42, 677,138.58 and 272,889.14 is: 376,589.09
Step by Step Solution
- Step 1: Write the proportion equation
490,677.42 : 677,138.58 = 272,889.14 : x - Step 2: Convert to fraction form
490,677.42/677,138.58 = 272,889.14/x - Step 3: Cross multiply
490,677.42x = 677,138.58 × 272,889.14 - Step 4: Simplify right side
490,677.42x = 184,783,764,757.02 - Step 5: Solve for x
x = 184,783,764,757.02/490,677.42 - Step 6: Final answer
x = 376,589.09
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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.