Finding the Fourth Proportional to 394,879.20, 592,318.80 and 368,440.80
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Solution
The fourth proportional to 394,879.20, 592,318.80 and 368,440.80 is: 552,661.20
Step by Step Solution
- Step 1: Write the proportion equation
394,879.20 : 592,318.80 = 368,440.80 : x - Step 2: Convert to fraction form
394,879.20/592,318.80 = 368,440.80/x - Step 3: Cross multiply
394,879.20x = 592,318.80 × 368,440.80 - Step 4: Simplify right side
394,879.20x = 218,234,412,527.04 - Step 5: Solve for x
x = 218,234,412,527.04/394,879.20 - Step 6: Final answer
x = 552,661.20
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1.5x scale
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.