Finding the Fourth Proportional to 1,378,023.80, 1,901,574.06 and 757,872.66
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Solution
The fourth proportional to 1,378,023.80, 1,901,574.06 and 757,872.66 is: 1,045,809.94
Step by Step Solution
- Step 1: Write the proportion equation
1,378,023.80 : 1,901,574.06 = 757,872.66 : x - Step 2: Convert to fraction form
1,378,023.80/1,901,574.06 = 757,872.66/x - Step 3: Cross multiply
1,378,023.80x = 1,901,574.06 × 757,872.66 - Step 4: Simplify right side
1,378,023.80x = 1,441,150,991,039.20 - Step 5: Solve for x
x = 1,441,150,991,039.20/1,378,023.80 - Step 6: Final answer
x = 1,045,809.94
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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.