Finding the Fourth Proportional to 642,662.62, 886,671.75 and 370,694.05
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Solution
The fourth proportional to 642,662.62, 886,671.75 and 370,694.05 is: 511,440.89
Step by Step Solution
- Step 1: Write the proportion equation
642,662.62 : 886,671.75 = 370,694.05 : x - Step 2: Convert to fraction form
642,662.62/886,671.75 = 370,694.05/x - Step 3: Cross multiply
642,662.62x = 886,671.75 × 370,694.05 - Step 4: Simplify right side
642,662.62x = 328,683,942,028.09 - Step 5: Solve for x
x = 328,683,942,028.09/642,662.62 - Step 6: Final answer
x = 511,440.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.