Finding the Fourth Proportional to 415,634.80, 623,452.20 and 327,161.20
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Solution
The fourth proportional to 415,634.80, 623,452.20 and 327,161.20 is: 490,741.80
Step by Step Solution
- Step 1: Write the proportion equation
415,634.80 : 623,452.20 = 327,161.20 : x - Step 2: Convert to fraction form
415,634.80/623,452.20 = 327,161.20/x - Step 3: Cross multiply
415,634.80x = 623,452.20 × 327,161.20 - Step 4: Simplify right side
415,634.80x = 203,969,369,894.64 - Step 5: Solve for x
x = 203,969,369,894.64/415,634.80 - Step 6: Final answer
x = 490,741.80
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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.