Finding the Fourth Proportional to 1,078,072.08, 1,617,101.40 and 279,351.60
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Solution
The fourth proportional to 1,078,072.08, 1,617,101.40 and 279,351.60 is: 419,025.66
Step by Step Solution
- Step 1: Write the proportion equation
1,078,072.08 : 1,617,101.40 = 279,351.60 : x - Step 2: Convert to fraction form
1,078,072.08/1,617,101.40 = 279,351.60/x - Step 3: Cross multiply
1,078,072.08x = 1,617,101.40 × 279,351.60 - Step 4: Simplify right side
1,078,072.08x = 451,739,863,452.24 - Step 5: Solve for x
x = 451,739,863,452.24/1,078,072.08 - Step 6: Final answer
x = 419,025.66
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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.