Finding the Fourth Proportional to 1,292,474.14, 1,782,453.20 and 809,083.35
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Solution
The fourth proportional to 1,292,474.14, 1,782,453.20 and 809,083.35 is: 1,115,808.17
Step by Step Solution
- Step 1: Write the proportion equation
1,292,474.14 : 1,782,453.20 = 809,083.35 : x - Step 2: Convert to fraction form
1,292,474.14/1,782,453.20 = 809,083.35/x - Step 3: Cross multiply
1,292,474.14x = 1,782,453.20 × 809,083.35 - Step 4: Simplify right side
1,292,474.14x = 1,442,153,202,228.80 - Step 5: Solve for x
x = 1,442,153,202,228.80/1,292,474.14 - Step 6: Final answer
x = 1,115,808.17
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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.