Finding the Fourth Proportional to 378,762.93, 522,505.60 and 247,863.09
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Solution
The fourth proportional to 378,762.93, 522,505.60 and 247,863.09 is: 341,928.53
Step by Step Solution
- Step 1: Write the proportion equation
378,762.93 : 522,505.60 = 247,863.09 : x - Step 2: Convert to fraction form
378,762.93/522,505.60 = 247,863.09/x - Step 3: Cross multiply
378,762.93x = 522,505.60 × 247,863.09 - Step 4: Simplify right side
378,762.93x = 129,509,852,558.30 - Step 5: Solve for x
x = 129,509,852,558.30/378,762.93 - Step 6: Final answer
x = 341,928.53
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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.