Finding the Fourth Proportional to 1,938,525.36, 2,675,128.44 and 1,079,079.60
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Solution
The fourth proportional to 1,938,525.36, 2,675,128.44 and 1,079,079.60 is: 1,489,109.50
Step by Step Solution
- Step 1: Write the proportion equation
1,938,525.36 : 2,675,128.44 = 1,079,079.60 : x - Step 2: Convert to fraction form
1,938,525.36/2,675,128.44 = 1,079,079.60/x - Step 3: Cross multiply
1,938,525.36x = 2,675,128.44 × 1,079,079.60 - Step 4: Simplify right side
1,938,525.36x = 2,886,676,526,983.82 - Step 5: Solve for x
x = 2,886,676,526,983.82/1,938,525.36 - Step 6: Final answer
x = 1,489,109.50
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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.