Finding the Fourth Proportional to 1,129,747.34, 1,694,634.71 and 331,045.08
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Solution
The fourth proportional to 1,129,747.34, 1,694,634.71 and 331,045.08 is: 496,571.64
Step by Step Solution
- Step 1: Write the proportion equation
1,129,747.34 : 1,694,634.71 = 331,045.08 : x - Step 2: Convert to fraction form
1,129,747.34/1,694,634.71 = 331,045.08/x - Step 3: Cross multiply
1,129,747.34x = 1,694,634.71 × 331,045.08 - Step 4: Simplify right side
1,129,747.34x = 561,000,481,487.50 - Step 5: Solve for x
x = 561,000,481,487.50/1,129,747.34 - Step 6: Final answer
x = 496,571.64
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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.