Finding the Fourth Proportional to 1,384,920.99, 2,077,379.54 and 769,815.97
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Solution
The fourth proportional to 1,384,920.99, 2,077,379.54 and 769,815.97 is: 1,154,722.87
Step by Step Solution
- Step 1: Write the proportion equation
1,384,920.99 : 2,077,379.54 = 769,815.97 : x - Step 2: Convert to fraction form
1,384,920.99/2,077,379.54 = 769,815.97/x - Step 3: Cross multiply
1,384,920.99x = 2,077,379.54 × 769,815.97 - Step 4: Simplify right side
1,384,920.99x = 1,599,199,936,600.73 - Step 5: Solve for x
x = 1,599,199,936,600.73/1,384,920.99 - Step 6: Final answer
x = 1,154,722.87
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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.