Finding the Fourth Proportional to 4,857,432.70, 7,286,149.05 and 1,491,202.30
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Solution
The fourth proportional to 4,857,432.70, 7,286,149.05 and 1,491,202.30 is: 2,236,803.45
Step by Step Solution
- Step 1: Write the proportion equation
4,857,432.70 : 7,286,149.05 = 1,491,202.30 : x - Step 2: Convert to fraction form
4,857,432.70/7,286,149.05 = 1,491,202.30/x - Step 3: Cross multiply
4,857,432.70x = 7,286,149.05 × 1,491,202.30 - Step 4: Simplify right side
4,857,432.70x = 10,865,122,221,502.81 - Step 5: Solve for x
x = 10,865,122,221,502.81/4,857,432.70 - Step 6: Final answer
x = 2,236,803.45
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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.