Finding the Fourth Proportional to 394,602.77, 591,909.62 and 128,364.68
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Solution
The fourth proportional to 394,602.77, 591,909.62 and 128,364.68 is: 192,548.79
Step by Step Solution
- Step 1: Write the proportion equation
394,602.77 : 591,909.62 = 128,364.68 : x - Step 2: Convert to fraction form
394,602.77/591,909.62 = 128,364.68/x - Step 3: Cross multiply
394,602.77x = 591,909.62 × 128,364.68 - Step 4: Simplify right side
394,602.77x = 75,980,285,358.85 - Step 5: Solve for x
x = 75,980,285,358.85/394,602.77 - Step 6: Final answer
x = 192,548.79
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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.