Finding the Fourth Proportional to 1,291,297.60, 1,936,071.60 and 684,186.40
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Solution
The fourth proportional to 1,291,297.60, 1,936,071.60 and 684,186.40 is: 1,025,816.09
Step by Step Solution
- Step 1: Write the proportion equation
1,291,297.60 : 1,936,071.60 = 684,186.40 : x - Step 2: Convert to fraction form
1,291,297.60/1,936,071.60 = 684,186.40/x - Step 3: Cross multiply
1,291,297.60x = 1,936,071.60 × 684,186.40 - Step 4: Simplify right side
1,291,297.60x = 1,324,633,858,146.24 - Step 5: Solve for x
x = 1,324,633,858,146.24/1,291,297.60 - Step 6: Final answer
x = 1,025,816.09
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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.