Finding the Fourth Proportional to 548,639.92, 757,180.07 and 316,074.75
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Solution
The fourth proportional to 548,639.92, 757,180.07 and 316,074.75 is: 436,215.98
Step by Step Solution
- Step 1: Write the proportion equation
548,639.92 : 757,180.07 = 316,074.75 : x - Step 2: Convert to fraction form
548,639.92/757,180.07 = 316,074.75/x - Step 3: Cross multiply
548,639.92x = 757,180.07 × 316,074.75 - Step 4: Simplify right side
548,639.92x = 239,325,501,330.23 - Step 5: Solve for x
x = 239,325,501,330.23/548,639.92 - Step 6: Final answer
x = 436,215.98
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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.