Finding the Fourth Proportional to 3,759,285.12, 5,187,816.96 and 2,040,405.12
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Solution
The fourth proportional to 3,759,285.12, 5,187,816.96 and 2,040,405.12 is: 2,815,760.96
Step by Step Solution
- Step 1: Write the proportion equation
3,759,285.12 : 5,187,816.96 = 2,040,405.12 : x - Step 2: Convert to fraction form
3,759,285.12/5,187,816.96 = 2,040,405.12/x - Step 3: Cross multiply
3,759,285.12x = 5,187,816.96 × 2,040,405.12 - Step 4: Simplify right side
3,759,285.12x = 10,585,248,286,806.84 - Step 5: Solve for x
x = 10,585,248,286,806.84/3,759,285.12 - Step 6: Final answer
x = 2,815,760.96
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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.