Finding the Fourth Proportional to 394,869.97, 592,304.47 and 128,630.05
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Solution
The fourth proportional to 394,869.97, 592,304.47 and 128,630.05 is: 192,944.91
Step by Step Solution
- Step 1: Write the proportion equation
394,869.97 : 592,304.47 = 128,630.05 : x - Step 2: Convert to fraction form
394,869.97/592,304.47 = 128,630.05/x - Step 3: Cross multiply
394,869.97x = 592,304.47 × 128,630.05 - Step 4: Simplify right side
394,869.97x = 76,188,150,308.23 - Step 5: Solve for x
x = 76,188,150,308.23/394,869.97 - Step 6: Final answer
x = 192,944.91
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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.