Finding the Fourth Proportional to 1,485,171.35, 2,228,236.80 and 686,976.49
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Solution
The fourth proportional to 1,485,171.35, 2,228,236.80 and 686,976.49 is: 1,030,686.66
Step by Step Solution
- Step 1: Write the proportion equation
1,485,171.35 : 2,228,236.80 = 686,976.49 : x - Step 2: Convert to fraction form
1,485,171.35/2,228,236.80 = 686,976.49/x - Step 3: Cross multiply
1,485,171.35x = 2,228,236.80 × 686,976.49 - Step 4: Simplify right side
1,485,171.35x = 1,530,746,295,961.97 - Step 5: Solve for x
x = 1,530,746,295,961.97/1,485,171.35 - Step 6: Final answer
x = 1,030,686.66
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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.