Finding the Fourth Proportional to 769,751.37, 1,062,238.55 and 430,251.21
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Solution
The fourth proportional to 769,751.37, 1,062,238.55 and 430,251.21 is: 593,736.42
Step by Step Solution
- Step 1: Write the proportion equation
769,751.37 : 1,062,238.55 = 430,251.21 : x - Step 2: Convert to fraction form
769,751.37/1,062,238.55 = 430,251.21/x - Step 3: Cross multiply
769,751.37x = 1,062,238.55 × 430,251.21 - Step 4: Simplify right side
769,751.37x = 457,029,419,294.89 - Step 5: Solve for x
x = 457,029,419,294.89/769,751.37 - Step 6: Final answer
x = 593,736.42
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1.5x scale
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.