Finding the Fourth Proportional to 3,171,540.56, 4,376,728.24 and 1,721,235.68
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Solution
The fourth proportional to 3,171,540.56, 4,376,728.24 and 1,721,235.68 is: 2,375,306.47
Step by Step Solution
- Step 1: Write the proportion equation
3,171,540.56 : 4,376,728.24 = 1,721,235.68 : x - Step 2: Convert to fraction form
3,171,540.56/4,376,728.24 = 1,721,235.68/x - Step 3: Cross multiply
3,171,540.56x = 4,376,728.24 × 1,721,235.68 - Step 4: Simplify right side
3,171,540.56x = 7,533,380,808,351.60 - Step 5: Solve for x
x = 7,533,380,808,351.60/3,171,540.56 - Step 6: Final answer
x = 2,375,306.47
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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.