Finding the Fourth Proportional to 3,535,021.40, 4,878,745.70 and 1,986,286.41
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Solution
The fourth proportional to 3,535,021.40, 4,878,745.70 and 1,986,286.41 is: 2,741,309.09
Step by Step Solution
- Step 1: Write the proportion equation
3,535,021.40 : 4,878,745.70 = 1,986,286.41 : x - Step 2: Convert to fraction form
3,535,021.40/4,878,745.70 = 1,986,286.41/x - Step 3: Cross multiply
3,535,021.40x = 4,878,745.70 × 1,986,286.41 - Step 4: Simplify right side
3,535,021.40x = 9,690,586,271,824.51 - Step 5: Solve for x
x = 9,690,586,271,824.51/3,535,021.40 - Step 6: Final answer
x = 2,741,309.09
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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.