Finding the Fourth Proportional to 2,405,855.21, 3,320,080.11 and 1,318,167.99
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Solution
The fourth proportional to 2,405,855.21, 3,320,080.11 and 1,318,167.99 is: 1,819,071.79
Step by Step Solution
- Step 1: Write the proportion equation
2,405,855.21 : 3,320,080.11 = 1,318,167.99 : x - Step 2: Convert to fraction form
2,405,855.21/3,320,080.11 = 1,318,167.99/x - Step 3: Cross multiply
2,405,855.21x = 3,320,080.11 × 1,318,167.99 - Step 4: Simplify right side
2,405,855.21x = 4,376,423,325,237.68 - Step 5: Solve for x
x = 4,376,423,325,237.68/2,405,855.21 - Step 6: Final answer
x = 1,819,071.79
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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.