Finding the Fourth Proportional to 2,165,189.44, 2,987,648.64 and 1,198,317.44
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Solution
The fourth proportional to 2,165,189.44, 2,987,648.64 and 1,198,317.44 is: 1,653,504.96
Step by Step Solution
- Step 1: Write the proportion equation
2,165,189.44 : 2,987,648.64 = 1,198,317.44 : x - Step 2: Convert to fraction form
2,165,189.44/2,987,648.64 = 1,198,317.44/x - Step 3: Cross multiply
2,165,189.44x = 2,987,648.64 × 1,198,317.44 - Step 4: Simplify right side
2,165,189.44x = 3,580,151,469,904.28 - Step 5: Solve for x
x = 3,580,151,469,904.28/2,165,189.44 - Step 6: Final answer
x = 1,653,504.96
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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.