Finding the Fourth Proportional to 398,728.19, 597,599.79 and 342,170.75
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Solution
The fourth proportional to 398,728.19, 597,599.79 and 342,170.75 is: 512,833.49
Step by Step Solution
- Step 1: Write the proportion equation
398,728.19 : 597,599.79 = 342,170.75 : x - Step 2: Convert to fraction form
398,728.19/597,599.79 = 342,170.75/x - Step 3: Cross multiply
398,728.19x = 597,599.79 × 342,170.75 - Step 4: Simplify right side
398,728.19x = 204,481,165,356.14 - Step 5: Solve for x
x = 204,481,165,356.14/398,728.19 - Step 6: Final answer
x = 512,833.49
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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.