Finding the Fourth Proportional to 699,614.74, 965,393.88 and 393,685.79
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Solution
The fourth proportional to 699,614.74, 965,393.88 and 393,685.79 is: 543,244.49
Step by Step Solution
- Step 1: Write the proportion equation
699,614.74 : 965,393.88 = 393,685.79 : x - Step 2: Convert to fraction form
699,614.74/965,393.88 = 393,685.79/x - Step 3: Cross multiply
699,614.74x = 965,393.88 × 393,685.79 - Step 4: Simplify right side
699,614.74x = 380,061,852,308.97 - Step 5: Solve for x
x = 380,061,852,308.97/699,614.74 - Step 6: Final answer
x = 543,244.49
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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.