Finding the Fourth Proportional to 1,542,236.56, 2,128,286.20 and 863,173.12
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Solution
The fourth proportional to 1,542,236.56, 2,128,286.20 and 863,173.12 is: 1,191,178.76
Step by Step Solution
- Step 1: Write the proportion equation
1,542,236.56 : 2,128,286.20 = 863,173.12 : x - Step 2: Convert to fraction form
1,542,236.56/2,128,286.20 = 863,173.12/x - Step 3: Cross multiply
1,542,236.56x = 2,128,286.20 × 863,173.12 - Step 4: Simplify right side
1,542,236.56x = 1,837,079,439,506.94 - Step 5: Solve for x
x = 1,837,079,439,506.94/1,542,236.56 - Step 6: Final answer
x = 1,191,178.76
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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.