Finding the Fourth Proportional to 1,292,536.44, 1,782,539.04 and 809,145.60
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Solution
The fourth proportional to 1,292,536.44, 1,782,539.04 and 809,145.60 is: 1,115,893.97
Step by Step Solution
- Step 1: Write the proportion equation
1,292,536.44 : 1,782,539.04 = 809,145.60 : x - Step 2: Convert to fraction form
1,292,536.44/1,782,539.04 = 809,145.60/x - Step 3: Cross multiply
1,292,536.44x = 1,782,539.04 × 809,145.60 - Step 4: Simplify right side
1,292,536.44x = 1,442,333,621,044.22 - Step 5: Solve for x
x = 1,442,333,621,044.22/1,292,536.44 - Step 6: Final answer
x = 1,115,893.97
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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.