Finding the Fourth Proportional to 1,286,949.43, 1,930,415.47 and 327,396.80
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Solution
The fourth proportional to 1,286,949.43, 1,930,415.47 and 327,396.80 is: 491,092.99
Step by Step Solution
- Step 1: Write the proportion equation
1,286,949.43 : 1,930,415.47 = 327,396.80 : x - Step 2: Convert to fraction form
1,286,949.43/1,930,415.47 = 327,396.80/x - Step 3: Cross multiply
1,286,949.43x = 1,930,415.47 × 327,396.80 - Step 4: Simplify right side
1,286,949.43x = 632,011,847,548.50 - Step 5: Solve for x
x = 632,011,847,548.50/1,286,949.43 - Step 6: Final answer
x = 491,092.99
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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.