Finding the Fourth Proportional to 482,396.73, 665,657.19 and 278,378.79
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Solution
The fourth proportional to 482,396.73, 665,657.19 and 278,378.79 is: 384,133.70
Step by Step Solution
- Step 1: Write the proportion equation
482,396.73 : 665,657.19 = 278,378.79 : x - Step 2: Convert to fraction form
482,396.73/665,657.19 = 278,378.79/x - Step 3: Cross multiply
482,396.73x = 665,657.19 × 278,378.79 - Step 4: Simplify right side
482,396.73x = 185,304,843,107.00 - Step 5: Solve for x
x = 185,304,843,107.00/482,396.73 - Step 6: Final answer
x = 384,133.70
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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.