Finding the Fourth Proportional to 699,540.68, 1,047,138.90 and 378,896.12
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Solution
The fourth proportional to 699,540.68, 1,047,138.90 and 378,896.12 is: 567,167.68
Step by Step Solution
- Step 1: Write the proportion equation
699,540.68 : 1,047,138.90 = 378,896.12 : x - Step 2: Convert to fraction form
699,540.68/1,047,138.90 = 378,896.12/x - Step 3: Cross multiply
699,540.68x = 1,047,138.90 × 378,896.12 - Step 4: Simplify right side
699,540.68x = 396,756,866,311.07 - Step 5: Solve for x
x = 396,756,866,311.07/699,540.68 - Step 6: Final answer
x = 567,167.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.