Finding the Fourth Proportional to 1,805,163.95, 2,491,013.34 and 989,309.75
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Solution
The fourth proportional to 1,805,163.95, 2,491,013.34 and 989,309.75 is: 1,365,185.57
Step by Step Solution
- Step 1: Write the proportion equation
1,805,163.95 : 2,491,013.34 = 989,309.75 : x - Step 2: Convert to fraction form
1,805,163.95/2,491,013.34 = 989,309.75/x - Step 3: Cross multiply
1,805,163.95x = 2,491,013.34 × 989,309.75 - Step 4: Simplify right side
1,805,163.95x = 2,464,383,772,187.00 - Step 5: Solve for x
x = 2,464,383,772,187.00/1,805,163.95 - Step 6: Final answer
x = 1,365,185.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.