Finding the Fourth Proportional to 494,719.97, 682,713.80 and 279,855.47
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Solution
The fourth proportional to 494,719.97, 682,713.80 and 279,855.47 is: 386,200.68
Step by Step Solution
- Step 1: Write the proportion equation
494,719.97 : 682,713.80 = 279,855.47 : x - Step 2: Convert to fraction form
494,719.97/682,713.80 = 279,855.47/x - Step 3: Cross multiply
494,719.97x = 682,713.80 × 279,855.47 - Step 4: Simplify right side
494,719.97x = 191,061,189,975.21 - Step 5: Solve for x
x = 191,061,189,975.21/494,719.97 - Step 6: Final answer
x = 386,200.68
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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.