Finding the Fourth Proportional to 678,704.24, 936,619.50 and 372,787.70
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Solution
The fourth proportional to 678,704.24, 936,619.50 and 372,787.70 is: 514,451.22
Step by Step Solution
- Step 1: Write the proportion equation
678,704.24 : 936,619.50 = 372,787.70 : x - Step 2: Convert to fraction form
678,704.24/936,619.50 = 372,787.70/x - Step 3: Cross multiply
678,704.24x = 936,619.50 × 372,787.70 - Step 4: Simplify right side
678,704.24x = 349,160,224,497.05 - Step 5: Solve for x
x = 349,160,224,497.05/678,704.24 - Step 6: Final answer
x = 514,451.22
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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.