Finding the Fourth Proportional to 2,288,122.20, 3,432,183.30 and 2,172,648.60
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Solution
The fourth proportional to 2,288,122.20, 3,432,183.30 and 2,172,648.60 is: 3,258,972.90
Step by Step Solution
- Step 1: Write the proportion equation
2,288,122.20 : 3,432,183.30 = 2,172,648.60 : x - Step 2: Convert to fraction form
2,288,122.20/3,432,183.30 = 2,172,648.60/x - Step 3: Cross multiply
2,288,122.20x = 3,432,183.30 × 2,172,648.60 - Step 4: Simplify right side
2,288,122.20x = 7,456,928,241,688.38 - Step 5: Solve for x
x = 7,456,928,241,688.38/2,288,122.20 - Step 6: Final answer
x = 3,258,972.90
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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.