Finding the Fourth Proportional to 1,198,278.99, 1,653,636.20 and 682,007.54
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Solution
The fourth proportional to 1,198,278.99, 1,653,636.20 and 682,007.54 is: 941,176.77
Step by Step Solution
- Step 1: Write the proportion equation
1,198,278.99 : 1,653,636.20 = 682,007.54 : x - Step 2: Convert to fraction form
1,198,278.99/1,653,636.20 = 682,007.54/x - Step 3: Cross multiply
1,198,278.99x = 1,653,636.20 × 682,007.54 - Step 4: Simplify right side
1,198,278.99x = 1,127,792,345,138.73 - Step 5: Solve for x
x = 1,127,792,345,138.73/1,198,278.99 - Step 6: Final answer
x = 941,176.77
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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.