Finding the Fourth Proportional to 371,609.28, 557,647.20 and 347,698.08
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Solution
The fourth proportional to 371,609.28, 557,647.20 and 347,698.08 is: 521,765.39
Step by Step Solution
- Step 1: Write the proportion equation
371,609.28 : 557,647.20 = 347,698.08 : x - Step 2: Convert to fraction form
371,609.28/557,647.20 = 347,698.08/x - Step 3: Cross multiply
371,609.28x = 557,647.20 × 347,698.08 - Step 4: Simplify right side
371,609.28x = 193,892,860,757.38 - Step 5: Solve for x
x = 193,892,860,757.38/371,609.28 - Step 6: Final answer
x = 521,765.39
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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.