Finding the Fourth Proportional to 1,287,202.48, 1,776,424.32 and 743,361.12
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Solution
The fourth proportional to 1,287,202.48, 1,776,424.32 and 743,361.12 is: 1,025,887.37
Step by Step Solution
- Step 1: Write the proportion equation
1,287,202.48 : 1,776,424.32 = 743,361.12 : x - Step 2: Convert to fraction form
1,287,202.48/1,776,424.32 = 743,361.12/x - Step 3: Cross multiply
1,287,202.48x = 1,776,424.32 × 743,361.12 - Step 4: Simplify right side
1,287,202.48x = 1,320,524,772,110.44 - Step 5: Solve for x
x = 1,320,524,772,110.44/1,287,202.48 - Step 6: Final answer
x = 1,025,887.37
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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.