Finding the Fourth Proportional to 681,155.73, 939,994.97 and 394,841.97
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Solution
The fourth proportional to 681,155.73, 939,994.97 and 394,841.97 is: 544,881.95
Step by Step Solution
- Step 1: Write the proportion equation
681,155.73 : 939,994.97 = 394,841.97 : x - Step 2: Convert to fraction form
681,155.73/939,994.97 = 394,841.97/x - Step 3: Cross multiply
681,155.73x = 939,994.97 × 394,841.97 - Step 4: Simplify right side
681,155.73x = 371,149,463,770.68 - Step 5: Solve for x
x = 371,149,463,770.68/681,155.73 - Step 6: Final answer
x = 544,881.95
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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.