Finding the Fourth Proportional to 738,625.21, 1,107,915.94 and 306,299.05
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Solution
The fourth proportional to 738,625.21, 1,107,915.94 and 306,299.05 is: 459,439.50
Step by Step Solution
- Step 1: Write the proportion equation
738,625.21 : 1,107,915.94 = 306,299.05 : x - Step 2: Convert to fraction form
738,625.21/1,107,915.94 = 306,299.05/x - Step 3: Cross multiply
738,625.21x = 1,107,915.94 × 306,299.05 - Step 4: Simplify right side
738,625.21x = 339,353,599,901.86 - Step 5: Solve for x
x = 339,353,599,901.86/738,625.21 - Step 6: Final answer
x = 459,439.50
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1.5x scale
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.