Finding the Fourth Proportional to 1,235,745.40, 1,853,618.10 and 970,324.60
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Solution
The fourth proportional to 1,235,745.40, 1,853,618.10 and 970,324.60 is: 1,455,486.90
Step by Step Solution
- Step 1: Write the proportion equation
1,235,745.40 : 1,853,618.10 = 970,324.60 : x - Step 2: Convert to fraction form
1,235,745.40/1,853,618.10 = 970,324.60/x - Step 3: Cross multiply
1,235,745.40x = 1,853,618.10 × 970,324.60 - Step 4: Simplify right side
1,235,745.40x = 1,798,611,241,435.26 - Step 5: Solve for x
x = 1,798,611,241,435.26/1,235,745.40 - Step 6: Final answer
x = 1,455,486.90
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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.