Finding the Fourth Proportional to 3,585,126.40, 5,372,620.80 and 1,988,392.96
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Solution
The fourth proportional to 3,585,126.40, 5,372,620.80 and 1,988,392.96 is: 2,979,778.17
Step by Step Solution
- Step 1: Write the proportion equation
3,585,126.40 : 5,372,620.80 = 1,988,392.96 : x - Step 2: Convert to fraction form
3,585,126.40/5,372,620.80 = 1,988,392.96/x - Step 3: Cross multiply
3,585,126.40x = 5,372,620.80 × 1,988,392.96 - Step 4: Simplify right side
3,585,126.40x = 10,682,881,375,469.57 - Step 5: Solve for x
x = 10,682,881,375,469.57/3,585,126.40 - Step 6: Final answer
x = 2,979,778.17
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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.