Finding the Fourth Proportional to 765,749.70, 1,148,624.56 and 204,769.62
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Solution
The fourth proportional to 765,749.70, 1,148,624.56 and 204,769.62 is: 307,154.43
Step by Step Solution
- Step 1: Write the proportion equation
765,749.70 : 1,148,624.56 = 204,769.62 : x - Step 2: Convert to fraction form
765,749.70/1,148,624.56 = 204,769.62/x - Step 3: Cross multiply
765,749.70x = 1,148,624.56 × 204,769.62 - Step 4: Simplify right side
765,749.70x = 235,203,414,673.87 - Step 5: Solve for x
x = 235,203,414,673.87/765,749.70 - Step 6: Final answer
x = 307,154.43
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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.