Finding the Fourth Proportional to 3,977,746.80, 5,489,145.42 and 2,431,597.98
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Solution
The fourth proportional to 3,977,746.80, 5,489,145.42 and 2,431,597.98 is: 3,355,516.47
Step by Step Solution
- Step 1: Write the proportion equation
3,977,746.80 : 5,489,145.42 = 2,431,597.98 : x - Step 2: Convert to fraction form
3,977,746.80/5,489,145.42 = 2,431,597.98/x - Step 3: Cross multiply
3,977,746.80x = 5,489,145.42 × 2,431,597.98 - Step 4: Simplify right side
3,977,746.80x = 13,347,394,915,198.25 - Step 5: Solve for x
x = 13,347,394,915,198.25/3,977,746.80 - Step 6: Final answer
x = 3,355,516.47
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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.