Finding the Fourth Proportional to 1,117,438.25, 1,541,795.87 and 658,571.09
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Solution
The fourth proportional to 1,117,438.25, 1,541,795.87 and 658,571.09 is: 908,669.61
Step by Step Solution
- Step 1: Write the proportion equation
1,117,438.25 : 1,541,795.87 = 658,571.09 : x - Step 2: Convert to fraction form
1,117,438.25/1,541,795.87 = 658,571.09/x - Step 3: Cross multiply
1,117,438.25x = 1,541,795.87 × 658,571.09 - Step 4: Simplify right side
1,117,438.25x = 1,015,382,183,370.54 - Step 5: Solve for x
x = 1,015,382,183,370.54/1,117,438.25 - Step 6: Final answer
x = 908,669.61
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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.