Finding the Fourth Proportional to 394,431.12, 589,889.88 and 350,344.08
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Solution
The fourth proportional to 394,431.12, 589,889.88 and 350,344.08 is: 523,955.68
Step by Step Solution
- Step 1: Write the proportion equation
394,431.12 : 589,889.88 = 350,344.08 : x - Step 2: Convert to fraction form
394,431.12/589,889.88 = 350,344.08/x - Step 3: Cross multiply
394,431.12x = 589,889.88 × 350,344.08 - Step 4: Simplify right side
394,431.12x = 206,664,427,309.91 - Step 5: Solve for x
x = 206,664,427,309.91/394,431.12 - Step 6: Final answer
x = 523,955.68
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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.