Finding the Fourth Proportional to 681,622.64, 940,583.93 and 395,161.17
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Solution
The fourth proportional to 681,622.64, 940,583.93 and 395,161.17 is: 545,290.35
Step by Step Solution
- Step 1: Write the proportion equation
681,622.64 : 940,583.93 = 395,161.17 : x - Step 2: Convert to fraction form
681,622.64/940,583.93 = 395,161.17/x - Step 3: Cross multiply
681,622.64x = 940,583.93 × 395,161.17 - Step 4: Simplify right side
681,622.64x = 371,682,244,286.19 - Step 5: Solve for x
x = 371,682,244,286.19/681,622.64 - Step 6: Final answer
x = 545,290.35
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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.