Finding the Fourth Proportional to 1,348,615.12, 1,861,087.44 and 775,640.56
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Solution
The fourth proportional to 1,348,615.12, 1,861,087.44 and 775,640.56 is: 1,070,383.15
Step by Step Solution
- Step 1: Write the proportion equation
1,348,615.12 : 1,861,087.44 = 775,640.56 : x - Step 2: Convert to fraction form
1,348,615.12/1,861,087.44 = 775,640.56/x - Step 3: Cross multiply
1,348,615.12x = 1,861,087.44 × 775,640.56 - Step 4: Simplify right side
1,348,615.12x = 1,443,534,904,170.57 - Step 5: Solve for x
x = 1,443,534,904,170.57/1,348,615.12 - Step 6: Final answer
x = 1,070,383.15
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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.