Finding the Fourth Proportional to 1,242,393, 1,863,630.84 and 343,759.44
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Solution
The fourth proportional to 1,242,393, 1,863,630.84 and 343,759.44 is: 515,650.60
Step by Step Solution
- Step 1: Write the proportion equation
1,242,393 : 1,863,630.84 = 343,759.44 : x - Step 2: Convert to fraction form
1,242,393/1,863,630.84 = 343,759.44/x - Step 3: Cross multiply
1,242,393x = 1,863,630.84 × 343,759.44 - Step 4: Simplify right side
1,242,393x = 640,640,693,925.13 - Step 5: Solve for x
x = 640,640,693,925.13/1,242,393 - Step 6: Final answer
x = 515,650.60
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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.