Finding the Fourth Proportional to 3,921,936.68, 5,412,861.78 and 2,394,924.68
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Solution
The fourth proportional to 3,921,936.68, 5,412,861.78 and 2,394,924.68 is: 3,305,355.83
Step by Step Solution
- Step 1: Write the proportion equation
3,921,936.68 : 5,412,861.78 = 2,394,924.68 : x - Step 2: Convert to fraction form
3,921,936.68/5,412,861.78 = 2,394,924.68/x - Step 3: Cross multiply
3,921,936.68x = 5,412,861.78 × 2,394,924.68 - Step 4: Simplify right side
3,921,936.68x = 12,963,396,266,350.73 - Step 5: Solve for x
x = 12,963,396,266,350.73/3,921,936.68 - Step 6: Final answer
x = 3,305,355.83
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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.