Finding the Fourth Proportional to 2,261,791.02, 3,121,316.19 and 1,243,290.54
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Solution
The fourth proportional to 2,261,791.02, 3,121,316.19 and 1,243,290.54 is: 1,715,765.45
Step by Step Solution
- Step 1: Write the proportion equation
2,261,791.02 : 3,121,316.19 = 1,243,290.54 : x - Step 2: Convert to fraction form
2,261,791.02/3,121,316.19 = 1,243,290.54/x - Step 3: Cross multiply
2,261,791.02x = 3,121,316.19 × 1,243,290.54 - Step 4: Simplify right side
2,261,791.02x = 3,880,702,891,375.84 - Step 5: Solve for x
x = 3,880,702,891,375.84/2,261,791.02 - Step 6: Final answer
x = 1,715,765.45
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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.