Finding the Fourth Proportional to 494,721.97, 682,716.56 and 279,857.47
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Solution
The fourth proportional to 494,721.97, 682,716.56 and 279,857.47 is: 386,203.45
Step by Step Solution
- Step 1: Write the proportion equation
494,721.97 : 682,716.56 = 279,857.47 : x - Step 2: Convert to fraction form
494,721.97/682,716.56 = 279,857.47/x - Step 3: Cross multiply
494,721.97x = 682,716.56 × 279,857.47 - Step 4: Simplify right side
494,721.97x = 191,063,329,208.70 - Step 5: Solve for x
x = 191,063,329,208.70/494,721.97 - Step 6: Final answer
x = 386,203.45
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.