Finding the Fourth Proportional to 664,415.44, 916,880.52 and 362,611.60
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Solution
The fourth proportional to 664,415.44, 916,880.52 and 362,611.60 is: 500,397.03
Step by Step Solution
- Step 1: Write the proportion equation
664,415.44 : 916,880.52 = 362,611.60 : x - Step 2: Convert to fraction form
664,415.44/916,880.52 = 362,611.60/x - Step 3: Cross multiply
664,415.44x = 916,880.52 × 362,611.60 - Step 4: Simplify right side
664,415.44x = 332,471,512,366.03 - Step 5: Solve for x
x = 332,471,512,366.03/664,415.44 - Step 6: Final answer
x = 500,397.03
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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.