Finding the Fourth Proportional to 1,515,400.76, 2,091,236.67 and 827,067.02
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Solution
The fourth proportional to 1,515,400.76, 2,091,236.67 and 827,067.02 is: 1,141,343.55
Step by Step Solution
- Step 1: Write the proportion equation
1,515,400.76 : 2,091,236.67 = 827,067.02 : x - Step 2: Convert to fraction form
1,515,400.76/2,091,236.67 = 827,067.02/x - Step 3: Cross multiply
1,515,400.76x = 2,091,236.67 × 827,067.02 - Step 4: Simplify right side
1,515,400.76x = 1,729,592,870,315.44 - Step 5: Solve for x
x = 1,729,592,870,315.44/1,515,400.76 - Step 6: Final answer
x = 1,141,343.55
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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.