Finding the Fourth Proportional to 457,389.14, 685,626.98 and 305,713.97
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Solution
The fourth proportional to 457,389.14, 685,626.98 and 305,713.97 is: 458,265.68
Step by Step Solution
- Step 1: Write the proportion equation
457,389.14 : 685,626.98 = 305,713.97 : x - Step 2: Convert to fraction form
457,389.14/685,626.98 = 305,713.97/x - Step 3: Cross multiply
457,389.14x = 685,626.98 × 305,713.97 - Step 4: Simplify right side
457,389.14x = 209,605,743,609.31 - Step 5: Solve for x
x = 209,605,743,609.31/457,389.14 - Step 6: Final answer
x = 458,265.68
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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.