Finding the Fourth Proportional to 642,210.08, 963,631.65 and 300,676.60
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Solution
The fourth proportional to 642,210.08, 963,631.65 and 300,676.60 is: 451,163.09
Step by Step Solution
- Step 1: Write the proportion equation
642,210.08 : 963,631.65 = 300,676.60 : x - Step 2: Convert to fraction form
642,210.08/963,631.65 = 300,676.60/x - Step 3: Cross multiply
642,210.08x = 963,631.65 × 300,676.60 - Step 4: Simplify right side
642,210.08x = 289,741,485,765.31 - Step 5: Solve for x
x = 289,741,485,765.31/642,210.08 - Step 6: Final answer
x = 451,163.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.