Finding the Fourth Proportional to 522,657.74, 721,576.87 and 329,231.26
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Solution
The fourth proportional to 522,657.74, 721,576.87 and 329,231.26 is: 454,533.90
Step by Step Solution
- Step 1: Write the proportion equation
522,657.74 : 721,576.87 = 329,231.26 : x - Step 2: Convert to fraction form
522,657.74/721,576.87 = 329,231.26/x - Step 3: Cross multiply
522,657.74x = 721,576.87 × 329,231.26 - Step 4: Simplify right side
522,657.74x = 237,565,662,096.96 - Step 5: Solve for x
x = 237,565,662,096.96/522,657.74 - Step 6: Final answer
x = 454,533.90
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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.