Finding the Fourth Proportional to 1,431,826.07, 1,975,902.26 and 787,240.62
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Solution
The fourth proportional to 1,431,826.07, 1,975,902.26 and 787,240.62 is: 1,086,382.32
Step by Step Solution
- Step 1: Write the proportion equation
1,431,826.07 : 1,975,902.26 = 787,240.62 : x - Step 2: Convert to fraction form
1,431,826.07/1,975,902.26 = 787,240.62/x - Step 3: Cross multiply
1,431,826.07x = 1,975,902.26 × 787,240.62 - Step 4: Simplify right side
1,431,826.07x = 1,555,510,516,285.60 - Step 5: Solve for x
x = 1,555,510,516,285.60/1,431,826.07 - Step 6: Final answer
x = 1,086,382.32
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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.