Finding the Fourth Proportional to 1,129,571.60, 1,694,357.40 and 972,107.60
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Solution
The fourth proportional to 1,129,571.60, 1,694,357.40 and 972,107.60 is: 1,458,161.40
Step by Step Solution
- Step 1: Write the proportion equation
1,129,571.60 : 1,694,357.40 = 972,107.60 : x - Step 2: Convert to fraction form
1,129,571.60/1,694,357.40 = 972,107.60/x - Step 3: Cross multiply
1,129,571.60x = 1,694,357.40 × 972,107.60 - Step 4: Simplify right side
1,129,571.60x = 1,647,097,705,656.24 - Step 5: Solve for x
x = 1,647,097,705,656.24/1,129,571.60 - Step 6: Final answer
x = 1,458,161.40
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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.