Finding the Fourth Proportional to 548,737.12, 757,221.60 and 306,977.92
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Solution
The fourth proportional to 548,737.12, 757,221.60 and 306,977.92 is: 423,609.60
Step by Step Solution
- Step 1: Write the proportion equation
548,737.12 : 757,221.60 = 306,977.92 : x - Step 2: Convert to fraction form
548,737.12/757,221.60 = 306,977.92/x - Step 3: Cross multiply
548,737.12x = 757,221.60 × 306,977.92 - Step 4: Simplify right side
548,737.12x = 232,450,311,747.07 - Step 5: Solve for x
x = 232,450,311,747.07/548,737.12 - Step 6: Final answer
x = 423,609.60
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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.