Finding the Fourth Proportional to 394,789.14, 544,813.49 and 213,504.66
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Solution
The fourth proportional to 394,789.14, 544,813.49 and 213,504.66 is: 294,638.85
Step by Step Solution
- Step 1: Write the proportion equation
394,789.14 : 544,813.49 = 213,504.66 : x - Step 2: Convert to fraction form
394,789.14/544,813.49 = 213,504.66/x - Step 3: Cross multiply
394,789.14x = 544,813.49 × 213,504.66 - Step 4: Simplify right side
394,789.14x = 116,320,219,479.63 - Step 5: Solve for x
x = 116,320,219,479.63/394,789.14 - Step 6: Final answer
x = 294,638.85
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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.