Finding the Fourth Proportional to 2,112,939.46, 2,915,835.01 and 1,146,048.99
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Solution
The fourth proportional to 2,112,939.46, 2,915,835.01 and 1,146,048.99 is: 1,581,535.97
Step by Step Solution
- Step 1: Write the proportion equation
2,112,939.46 : 2,915,835.01 = 1,146,048.99 : x - Step 2: Convert to fraction form
2,112,939.46/2,915,835.01 = 1,146,048.99/x - Step 3: Cross multiply
2,112,939.46x = 2,915,835.01 × 1,146,048.99 - Step 4: Simplify right side
2,112,939.46x = 3,341,689,768,217.14 - Step 5: Solve for x
x = 3,341,689,768,217.14/2,112,939.46 - Step 6: Final answer
x = 1,581,535.97
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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.