Finding the Fourth Proportional to 1,405,230.75, 1,939,481.15 and 801,618.75
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Solution
The fourth proportional to 1,405,230.75, 1,939,481.15 and 801,618.75 is: 1,106,383.74
Step by Step Solution
- Step 1: Write the proportion equation
1,405,230.75 : 1,939,481.15 = 801,618.75 : x - Step 2: Convert to fraction form
1,405,230.75/1,939,481.15 = 801,618.75/x - Step 3: Cross multiply
1,405,230.75x = 1,939,481.15 × 801,618.75 - Step 4: Simplify right side
1,405,230.75x = 1,554,724,451,103.47 - Step 5: Solve for x
x = 1,554,724,451,103.47/1,405,230.75 - Step 6: Final answer
x = 1,106,383.74
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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.