Finding the Fourth Proportional to 3,419,876.96, 5,125,362.92 and 1,395,745.28
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Solution
The fourth proportional to 3,419,876.96, 5,125,362.92 and 1,395,745.28 is: 2,091,800.72
Step by Step Solution
- Step 1: Write the proportion equation
3,419,876.96 : 5,125,362.92 = 1,395,745.28 : x - Step 2: Convert to fraction form
3,419,876.96/5,125,362.92 = 1,395,745.28/x - Step 3: Cross multiply
3,419,876.96x = 5,125,362.92 × 1,395,745.28 - Step 4: Simplify right side
3,419,876.96x = 7,153,701,103,877.02 - Step 5: Solve for x
x = 7,153,701,103,877.02/3,419,876.96 - Step 6: Final answer
x = 2,091,800.72
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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.