Finding the Fourth Proportional to 848,638.42, 1,272,685.37 and 279,891.65
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Solution
The fourth proportional to 848,638.42, 1,272,685.37 and 279,891.65 is: 419,747.68
Step by Step Solution
- Step 1: Write the proportion equation
848,638.42 : 1,272,685.37 = 279,891.65 : x - Step 2: Convert to fraction form
848,638.42/1,272,685.37 = 279,891.65/x - Step 3: Cross multiply
848,638.42x = 1,272,685.37 × 279,891.65 - Step 4: Simplify right side
848,638.42x = 356,214,009,922.42 - Step 5: Solve for x
x = 356,214,009,922.42/848,638.42 - Step 6: Final answer
x = 419,747.68
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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.