Finding the Fourth Proportional to 699,046.42, 964,674.80 and 393,122.70
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Solution
The fourth proportional to 699,046.42, 964,674.80 and 393,122.70 is: 542,504.12
Step by Step Solution
- Step 1: Write the proportion equation
699,046.42 : 964,674.80 = 393,122.70 : x - Step 2: Convert to fraction form
699,046.42/964,674.80 = 393,122.70/x - Step 3: Cross multiply
699,046.42x = 964,674.80 × 393,122.70 - Step 4: Simplify right side
699,046.42x = 379,235,561,997.96 - Step 5: Solve for x
x = 379,235,561,997.96/699,046.42 - Step 6: Final answer
x = 542,504.12
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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.