Finding the Fourth Proportional to 3,986,228.40, 5,979,342.60 and 3,881,252.40
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Solution
The fourth proportional to 3,986,228.40, 5,979,342.60 and 3,881,252.40 is: 5,821,878.60
Step by Step Solution
- Step 1: Write the proportion equation
3,986,228.40 : 5,979,342.60 = 3,881,252.40 : x - Step 2: Convert to fraction form
3,986,228.40/5,979,342.60 = 3,881,252.40/x - Step 3: Cross multiply
3,986,228.40x = 5,979,342.60 × 3,881,252.40 - Step 4: Simplify right side
3,986,228.40x = 23,207,337,816,672.24 - Step 5: Solve for x
x = 23,207,337,816,672.24/3,986,228.40 - Step 6: Final answer
x = 5,821,878.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.