Finding the Fourth Proportional to 1,320,758.70, 1,981,138.05 and 848,366.70
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Solution
The fourth proportional to 1,320,758.70, 1,981,138.05 and 848,366.70 is: 1,272,550.05
Step by Step Solution
- Step 1: Write the proportion equation
1,320,758.70 : 1,981,138.05 = 848,366.70 : x - Step 2: Convert to fraction form
1,320,758.70/1,981,138.05 = 848,366.70/x - Step 3: Cross multiply
1,320,758.70x = 1,981,138.05 × 848,366.70 - Step 4: Simplify right side
1,320,758.70x = 1,680,731,549,722.94 - Step 5: Solve for x
x = 1,680,731,549,722.94/1,320,758.70 - Step 6: Final answer
x = 1,272,550.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.