Finding the Fourth Proportional to 768,240.76, 1,060,173.12 and 428,708.92
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Solution
The fourth proportional to 768,240.76, 1,060,173.12 and 428,708.92 is: 591,618.80
Step by Step Solution
- Step 1: Write the proportion equation
768,240.76 : 1,060,173.12 = 428,708.92 : x - Step 2: Convert to fraction form
768,240.76/1,060,173.12 = 428,708.92/x - Step 3: Cross multiply
768,240.76x = 1,060,173.12 × 428,708.92 - Step 4: Simplify right side
768,240.76x = 454,505,673,288.23 - Step 5: Solve for x
x = 454,505,673,288.23/768,240.76 - Step 6: Final answer
x = 591,618.80
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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.