Finding the Fourth Proportional to 846,531.69, 1,270,212.69 and 397,289.09
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Solution
The fourth proportional to 846,531.69, 1,270,212.69 and 397,289.09 is: 596,128.47
Step by Step Solution
- Step 1: Write the proportion equation
846,531.69 : 1,270,212.69 = 397,289.09 : x - Step 2: Convert to fraction form
846,531.69/1,270,212.69 = 397,289.09/x - Step 3: Cross multiply
846,531.69x = 1,270,212.69 × 397,289.09 - Step 4: Simplify right side
846,531.69x = 504,641,643,716.55 - Step 5: Solve for x
x = 504,641,643,716.55/846,531.69 - Step 6: Final answer
x = 596,128.47
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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.