Finding the Fourth Proportional to 3,131,652.21, 4,696,326.15 and 1,081,791.15
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Solution
The fourth proportional to 3,131,652.21, 4,696,326.15 and 1,081,791.15 is: 1,622,288.72
Step by Step Solution
- Step 1: Write the proportion equation
3,131,652.21 : 4,696,326.15 = 1,081,791.15 : x - Step 2: Convert to fraction form
3,131,652.21/4,696,326.15 = 1,081,791.15/x - Step 3: Cross multiply
3,131,652.21x = 4,696,326.15 × 1,081,791.15 - Step 4: Simplify right side
3,131,652.21x = 5,080,444,043,101.94 - Step 5: Solve for x
x = 5,080,444,043,101.94/3,131,652.21 - Step 6: Final answer
x = 1,622,288.72
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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.