Finding the Fourth Proportional to 1,138,524, 1,571,027.04 and 629,157.12
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Solution
The fourth proportional to 1,138,524, 1,571,027.04 and 629,157.12 is: 868,161.63
Step by Step Solution
- Step 1: Write the proportion equation
1,138,524 : 1,571,027.04 = 629,157.12 : x - Step 2: Convert to fraction form
1,138,524/1,571,027.04 = 629,157.12/x - Step 3: Cross multiply
1,138,524x = 1,571,027.04 × 629,157.12 - Step 4: Simplify right side
1,138,524x = 988,422,847,928.53 - Step 5: Solve for x
x = 988,422,847,928.53/1,138,524 - Step 6: Final answer
x = 868,161.63
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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.