Finding the Fourth Proportional to 1,347,745.20, 2,021,617.80 and 350,473.20
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Solution
The fourth proportional to 1,347,745.20, 2,021,617.80 and 350,473.20 is: 525,709.80
Step by Step Solution
- Step 1: Write the proportion equation
1,347,745.20 : 2,021,617.80 = 350,473.20 : x - Step 2: Convert to fraction form
1,347,745.20/2,021,617.80 = 350,473.20/x - Step 3: Cross multiply
1,347,745.20x = 2,021,617.80 × 350,473.20 - Step 4: Simplify right side
1,347,745.20x = 708,522,859,542.96 - Step 5: Solve for x
x = 708,522,859,542.96/1,347,745.20 - Step 6: Final answer
x = 525,709.80
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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.