Finding the Fourth Proportional to 457,082.18, 685,739.91 and 289,791.26
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Solution
The fourth proportional to 457,082.18, 685,739.91 and 289,791.26 is: 434,760.84
Step by Step Solution
- Step 1: Write the proportion equation
457,082.18 : 685,739.91 = 289,791.26 : x - Step 2: Convert to fraction form
457,082.18/685,739.91 = 289,791.26/x - Step 3: Cross multiply
457,082.18x = 685,739.91 × 289,791.26 - Step 4: Simplify right side
457,082.18x = 198,721,432,551.19 - Step 5: Solve for x
x = 198,721,432,551.19/457,082.18 - Step 6: Final answer
x = 434,760.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.