Finding the Fourth Proportional to 4,857,416.70, 7,286,125.05 and 1,491,186.30
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Solution
The fourth proportional to 4,857,416.70, 7,286,125.05 and 1,491,186.30 is: 2,236,779.45
Step by Step Solution
- Step 1: Write the proportion equation
4,857,416.70 : 7,286,125.05 = 1,491,186.30 : x - Step 2: Convert to fraction form
4,857,416.70/7,286,125.05 = 1,491,186.30/x - Step 3: Cross multiply
4,857,416.70x = 7,286,125.05 × 1,491,186.30 - Step 4: Simplify right side
4,857,416.70x = 10,864,969,854,646.81 - Step 5: Solve for x
x = 10,864,969,854,646.81/4,857,416.70 - Step 6: Final answer
x = 2,236,779.45
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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.