Finding the Fourth Proportional to 1,028,843.88, 1,420,296.84 and 685,251.60
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Solution
The fourth proportional to 1,028,843.88, 1,420,296.84 and 685,251.60 is: 945,975.09
Step by Step Solution
- Step 1: Write the proportion equation
1,028,843.88 : 1,420,296.84 = 685,251.60 : x - Step 2: Convert to fraction form
1,028,843.88/1,420,296.84 = 685,251.60/x - Step 3: Cross multiply
1,028,843.88x = 1,420,296.84 × 685,251.60 - Step 4: Simplify right side
1,028,843.88x = 973,260,682,084.94 - Step 5: Solve for x
x = 973,260,682,084.94/1,028,843.88 - Step 6: Final answer
x = 945,975.09
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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.