Finding the Fourth Proportional to 810,399.99, 1,215,651.84 and 311,763.99
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Solution
The fourth proportional to 810,399.99, 1,215,651.84 and 311,763.99 is: 467,665.93
Step by Step Solution
- Step 1: Write the proportion equation
810,399.99 : 1,215,651.84 = 311,763.99 : x - Step 2: Convert to fraction form
810,399.99/1,215,651.84 = 311,763.99/x - Step 3: Cross multiply
810,399.99x = 1,215,651.84 × 311,763.99 - Step 4: Simplify right side
810,399.99x = 378,996,468,089.24 - Step 5: Solve for x
x = 378,996,468,089.24/810,399.99 - Step 6: Final answer
x = 467,665.93
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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.