Finding the Fourth Proportional to 667,027.49, 920,496.79 and 361,103.75
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Solution
The fourth proportional to 667,027.49, 920,496.79 and 361,103.75 is: 498,322.55
Step by Step Solution
- Step 1: Write the proportion equation
667,027.49 : 920,496.79 = 361,103.75 : x - Step 2: Convert to fraction form
667,027.49/920,496.79 = 361,103.75/x - Step 3: Cross multiply
667,027.49x = 920,496.79 × 361,103.75 - Step 4: Simplify right side
667,027.49x = 332,394,842,731.96 - Step 5: Solve for x
x = 332,394,842,731.96/667,027.49 - Step 6: Final answer
x = 498,322.55
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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.