Finding the Fourth Proportional to 507,115.23, 699,865.97 and 280,760.73
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Solution
The fourth proportional to 507,115.23, 699,865.97 and 280,760.73 is: 387,475.80
Step by Step Solution
- Step 1: Write the proportion equation
507,115.23 : 699,865.97 = 280,760.73 : x - Step 2: Convert to fraction form
507,115.23/699,865.97 = 280,760.73/x - Step 3: Cross multiply
507,115.23x = 699,865.97 × 280,760.73 - Step 4: Simplify right side
507,115.23x = 196,494,879,235.55 - Step 5: Solve for x
x = 196,494,879,235.55/507,115.23 - Step 6: Final answer
x = 387,475.80
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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.