Finding the Fourth Proportional to 859,576.46, 1,289,407.50 and 327,138.75
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Solution
The fourth proportional to 859,576.46, 1,289,407.50 and 327,138.75 is: 490,724.42
Step by Step Solution
- Step 1: Write the proportion equation
859,576.46 : 1,289,407.50 = 327,138.75 : x - Step 2: Convert to fraction form
859,576.46/1,289,407.50 = 327,138.75/x - Step 3: Cross multiply
859,576.46x = 1,289,407.50 × 327,138.75 - Step 4: Simplify right side
859,576.46x = 421,815,157,790.63 - Step 5: Solve for x
x = 421,815,157,790.63/859,576.46 - Step 6: Final answer
x = 490,724.42
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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.