Finding the Fourth Proportional to 1,431,704.28, 1,975,753.17 and 787,135.44
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Solution
The fourth proportional to 1,431,704.28, 1,975,753.17 and 787,135.44 is: 1,086,247.60
Step by Step Solution
- Step 1: Write the proportion equation
1,431,704.28 : 1,975,753.17 = 787,135.44 : x - Step 2: Convert to fraction form
1,431,704.28/1,975,753.17 = 787,135.44/x - Step 3: Cross multiply
1,431,704.28x = 1,975,753.17 × 787,135.44 - Step 4: Simplify right side
1,431,704.28x = 1,555,185,340,799.34 - Step 5: Solve for x
x = 1,555,185,340,799.34/1,431,704.28 - Step 6: Final answer
x = 1,086,247.60
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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.