Finding the Fourth Proportional to 392,629.68, 586,284.48 and 311,760.18
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Solution
The fourth proportional to 392,629.68, 586,284.48 and 311,760.18 is: 465,528.12
Step by Step Solution
- Step 1: Write the proportion equation
392,629.68 : 586,284.48 = 311,760.18 : x - Step 2: Convert to fraction form
392,629.68/586,284.48 = 311,760.18/x - Step 3: Cross multiply
392,629.68x = 586,284.48 × 311,760.18 - Step 4: Simplify right side
392,629.68x = 182,780,155,016.01 - Step 5: Solve for x
x = 182,780,155,016.01/392,629.68 - Step 6: Final answer
x = 465,528.12
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.