Finding the Fourth Proportional to 1,555,163.70, 2,332,745.55 and 657,618.90
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Solution
The fourth proportional to 1,555,163.70, 2,332,745.55 and 657,618.90 is: 986,428.35
Step by Step Solution
- Step 1: Write the proportion equation
1,555,163.70 : 2,332,745.55 = 657,618.90 : x - Step 2: Convert to fraction form
1,555,163.70/2,332,745.55 = 657,618.90/x - Step 3: Cross multiply
1,555,163.70x = 2,332,745.55 × 657,618.90 - Step 4: Simplify right side
1,555,163.70x = 1,534,057,562,570.90 - Step 5: Solve for x
x = 1,534,057,562,570.90/1,555,163.70 - Step 6: Final answer
x = 986,428.35
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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.