Finding the Fourth Proportional to 494,009.57, 681,724.32 and 279,144.99
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Solution
The fourth proportional to 494,009.57, 681,724.32 and 279,144.99 is: 385,215.07
Step by Step Solution
- Step 1: Write the proportion equation
494,009.57 : 681,724.32 = 279,144.99 : x - Step 2: Convert to fraction form
494,009.57/681,724.32 = 279,144.99/x - Step 3: Cross multiply
494,009.57x = 681,724.32 × 279,144.99 - Step 4: Simplify right side
494,009.57x = 190,299,928,489.16 - Step 5: Solve for x
x = 190,299,928,489.16/494,009.57 - Step 6: Final answer
x = 385,215.07
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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.