Finding the Fourth Proportional to 1,292,506.44, 1,782,497.64 and 809,115.60
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Solution
The fourth proportional to 1,292,506.44, 1,782,497.64 and 809,115.60 is: 1,115,852.58
Step by Step Solution
- Step 1: Write the proportion equation
1,292,506.44 : 1,782,497.64 = 809,115.60 : x - Step 2: Convert to fraction form
1,292,506.44/1,782,497.64 = 809,115.60/x - Step 3: Cross multiply
1,292,506.44x = 1,782,497.64 × 809,115.60 - Step 4: Simplify right side
1,292,506.44x = 1,442,246,647,487.18 - Step 5: Solve for x
x = 1,442,246,647,487.18/1,292,506.44 - Step 6: Final answer
x = 1,115,852.58
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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.