Finding the Fourth Proportional to 642,286.18, 886,358.31 and 362,884.62
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Solution
The fourth proportional to 642,286.18, 886,358.31 and 362,884.62 is: 500,782.69
Step by Step Solution
- Step 1: Write the proportion equation
642,286.18 : 886,358.31 = 362,884.62 : x - Step 2: Convert to fraction form
642,286.18/886,358.31 = 362,884.62/x - Step 3: Cross multiply
642,286.18x = 886,358.31 × 362,884.62 - Step 4: Simplify right side
642,286.18x = 321,645,800,471.22 - Step 5: Solve for x
x = 321,645,800,471.22/642,286.18 - Step 6: Final answer
x = 500,782.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.