Finding the Fourth Proportional to 421,846.71, 582,420.15 and 376,446.63
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Solution
The fourth proportional to 421,846.71, 582,420.15 and 376,446.63 is: 519,738.80
Step by Step Solution
- Step 1: Write the proportion equation
421,846.71 : 582,420.15 = 376,446.63 : x - Step 2: Convert to fraction form
421,846.71/582,420.15 = 376,446.63/x - Step 3: Cross multiply
421,846.71x = 582,420.15 × 376,446.63 - Step 4: Simplify right side
421,846.71x = 219,250,102,711.60 - Step 5: Solve for x
x = 219,250,102,711.60/421,846.71 - Step 6: Final answer
x = 519,738.80
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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.