Finding the Fourth Proportional to 1,368,010.71, 2,052,236.57 and 421,380.99
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Solution
The fourth proportional to 1,368,010.71, 2,052,236.57 and 421,380.99 is: 632,139.40
Step by Step Solution
- Step 1: Write the proportion equation
1,368,010.71 : 2,052,236.57 = 421,380.99 : x - Step 2: Convert to fraction form
1,368,010.71/2,052,236.57 = 421,380.99/x - Step 3: Cross multiply
1,368,010.71x = 2,052,236.57 × 421,380.99 - Step 4: Simplify right side
1,368,010.71x = 864,773,475,473.90 - Step 5: Solve for x
x = 864,773,475,473.90/1,368,010.71 - Step 6: Final answer
x = 632,139.40
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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.