Finding the Fourth Proportional to 1,242,436.50, 1,863,696.42 and 343,803.06
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Solution
The fourth proportional to 1,242,436.50, 1,863,696.42 and 343,803.06 is: 515,716.12
Step by Step Solution
- Step 1: Write the proportion equation
1,242,436.50 : 1,863,696.42 = 343,803.06 : x - Step 2: Convert to fraction form
1,242,436.50/1,863,696.42 = 343,803.06/x - Step 3: Cross multiply
1,242,436.50x = 1,863,696.42 × 343,803.06 - Step 4: Simplify right side
1,242,436.50x = 640,744,532,107.05 - Step 5: Solve for x
x = 640,744,532,107.05/1,242,436.50 - Step 6: Final answer
x = 515,716.12
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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.