Finding the Fourth Proportional to 1,313,696.26, 1,970,532.51 and 415,138.15
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Solution
The fourth proportional to 1,313,696.26, 1,970,532.51 and 415,138.15 is: 622,703.47
Step by Step Solution
- Step 1: Write the proportion equation
1,313,696.26 : 1,970,532.51 = 415,138.15 : x - Step 2: Convert to fraction form
1,313,696.26/1,970,532.51 = 415,138.15/x - Step 3: Cross multiply
1,313,696.26x = 1,970,532.51 × 415,138.15 - Step 4: Simplify right side
1,313,696.26x = 818,043,220,716.26 - Step 5: Solve for x
x = 818,043,220,716.26/1,313,696.26 - Step 6: Final answer
x = 622,703.47
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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.