Finding the Fourth Proportional to 2,782,689.41, 3,840,517.09 and 1,559,077.80
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Solution
The fourth proportional to 2,782,689.41, 3,840,517.09 and 1,559,077.80 is: 2,151,754.67
Step by Step Solution
- Step 1: Write the proportion equation
2,782,689.41 : 3,840,517.09 = 1,559,077.80 : x - Step 2: Convert to fraction form
2,782,689.41/3,840,517.09 = 1,559,077.80/x - Step 3: Cross multiply
2,782,689.41x = 3,840,517.09 × 1,559,077.80 - Step 4: Simplify right side
2,782,689.41x = 5,987,664,935,539.60 - Step 5: Solve for x
x = 5,987,664,935,539.60/2,782,689.41 - Step 6: Final answer
x = 2,151,754.67
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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.