Finding the Fourth Proportional to 768,102.84, 1,059,981.26 and 428,571.09
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Solution
The fourth proportional to 768,102.84, 1,059,981.26 and 428,571.09 is: 591,427.74
Step by Step Solution
- Step 1: Write the proportion equation
768,102.84 : 1,059,981.26 = 428,571.09 : x - Step 2: Convert to fraction form
768,102.84/1,059,981.26 = 428,571.09/x - Step 3: Cross multiply
768,102.84x = 1,059,981.26 × 428,571.09 - Step 4: Simplify right side
768,102.84x = 454,277,323,977.77 - Step 5: Solve for x
x = 454,277,323,977.77/768,102.84 - Step 6: Final answer
x = 591,427.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.