Finding the Fourth Proportional to 1,399,915.68, 1,931,989.92 and 848,791.68
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Solution
The fourth proportional to 1,399,915.68, 1,931,989.92 and 848,791.68 is: 1,171,396.96
Step by Step Solution
- Step 1: Write the proportion equation
1,399,915.68 : 1,931,989.92 = 848,791.68 : x - Step 2: Convert to fraction form
1,399,915.68/1,931,989.92 = 848,791.68/x - Step 3: Cross multiply
1,399,915.68x = 1,931,989.92 × 848,791.68 - Step 4: Simplify right side
1,399,915.68x = 1,639,856,969,939.87 - Step 5: Solve for x
x = 1,639,856,969,939.87/1,399,915.68 - Step 6: Final answer
x = 1,171,396.96
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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.