Finding the Fourth Proportional to 874,880.19, 1,207,273.21 and 482,395.70
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Solution
The fourth proportional to 874,880.19, 1,207,273.21 and 482,395.70 is: 665,672.18
Step by Step Solution
- Step 1: Write the proportion equation
874,880.19 : 1,207,273.21 = 482,395.70 : x - Step 2: Convert to fraction form
874,880.19/1,207,273.21 = 482,395.70/x - Step 3: Cross multiply
874,880.19x = 1,207,273.21 × 482,395.70 - Step 4: Simplify right side
874,880.19x = 582,383,407,041.39 - Step 5: Solve for x
x = 582,383,407,041.39/874,880.19 - Step 6: Final answer
x = 665,672.18
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1.5x scale
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.