Finding the Fourth Proportional to 2,405,855.64, 3,320,029.98 and 1,318,074.24
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Solution
The fourth proportional to 2,405,855.64, 3,320,029.98 and 1,318,074.24 is: 1,818,914.62
Step by Step Solution
- Step 1: Write the proportion equation
2,405,855.64 : 3,320,029.98 = 1,318,074.24 : x - Step 2: Convert to fraction form
2,405,855.64/3,320,029.98 = 1,318,074.24/x - Step 3: Cross multiply
2,405,855.64x = 3,320,029.98 × 1,318,074.24 - Step 4: Simplify right side
2,405,855.64x = 4,376,045,992,665.72 - Step 5: Solve for x
x = 4,376,045,992,665.72/2,405,855.64 - Step 6: Final answer
x = 1,818,914.62
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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.