Finding the Fourth Proportional to 1,282,879.62, 1,770,330.33 and 709,943.94
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Solution
The fourth proportional to 1,282,879.62, 1,770,330.33 and 709,943.94 is: 979,698.54
Step by Step Solution
- Step 1: Write the proportion equation
1,282,879.62 : 1,770,330.33 = 709,943.94 : x - Step 2: Convert to fraction form
1,282,879.62/1,770,330.33 = 709,943.94/x - Step 3: Cross multiply
1,282,879.62x = 1,770,330.33 × 709,943.94 - Step 4: Simplify right side
1,282,879.62x = 1,256,835,289,581.70 - Step 5: Solve for x
x = 1,256,835,289,581.70/1,282,879.62 - Step 6: Final answer
x = 979,698.54
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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.