Finding the Fourth Proportional to 3,319,688.40, 4,979,532.60 and 3,294,805.20
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Solution
The fourth proportional to 3,319,688.40, 4,979,532.60 and 3,294,805.20 is: 4,942,207.80
Step by Step Solution
- Step 1: Write the proportion equation
3,319,688.40 : 4,979,532.60 = 3,294,805.20 : x - Step 2: Convert to fraction form
3,319,688.40/4,979,532.60 = 3,294,805.20/x - Step 3: Cross multiply
3,319,688.40x = 4,979,532.60 × 3,294,805.20 - Step 4: Simplify right side
3,319,688.40x = 16,406,589,904,049.52 - Step 5: Solve for x
x = 16,406,589,904,049.52/3,319,688.40 - Step 6: Final answer
x = 4,942,207.80
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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.