Finding the Fourth Proportional to 538,912.70, 743,704.74 and 297,203.84
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Solution
The fourth proportional to 538,912.70, 743,704.74 and 297,203.84 is: 410,144.17
Step by Step Solution
- Step 1: Write the proportion equation
538,912.70 : 743,704.74 = 297,203.84 : x - Step 2: Convert to fraction form
538,912.70/743,704.74 = 297,203.84/x - Step 3: Cross multiply
538,912.70x = 743,704.74 × 297,203.84 - Step 4: Simplify right side
538,912.70x = 221,031,904,554.20 - Step 5: Solve for x
x = 221,031,904,554.20/538,912.70 - Step 6: Final answer
x = 410,144.17
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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.