Finding the Fourth Proportional to 699,889.72, 965,865.88 and 393,977.05
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Solution
The fourth proportional to 699,889.72, 965,865.88 and 393,977.05 is: 543,698.50
Step by Step Solution
- Step 1: Write the proportion equation
699,889.72 : 965,865.88 = 393,977.05 : x - Step 2: Convert to fraction form
699,889.72/965,865.88 = 393,977.05/x - Step 3: Cross multiply
699,889.72x = 965,865.88 × 393,977.05 - Step 4: Simplify right side
699,889.72x = 380,528,990,098.05 - Step 5: Solve for x
x = 380,528,990,098.05/699,889.72 - Step 6: Final answer
x = 543,698.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.