Finding the Fourth Proportional to 1,427,622, 2,141,993.75 and 628,343.21
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Solution
The fourth proportional to 1,427,622, 2,141,993.75 and 628,343.21 is: 942,761.61
Step by Step Solution
- Step 1: Write the proportion equation
1,427,622 : 2,141,993.75 = 628,343.21 : x - Step 2: Convert to fraction form
1,427,622/2,141,993.75 = 628,343.21/x - Step 3: Cross multiply
1,427,622x = 2,141,993.75 × 628,343.21 - Step 4: Simplify right side
1,427,622x = 1,345,907,214,823.25 - Step 5: Solve for x
x = 1,345,907,214,823.25/1,427,622 - Step 6: Final answer
x = 942,761.61
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.