Finding the Fourth Proportional to 768,135.97, 1,060,028.81 and 428,605.03
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Solution
The fourth proportional to 768,135.97, 1,060,028.81 and 428,605.03 is: 591,475.60
Step by Step Solution
- Step 1: Write the proportion equation
768,135.97 : 1,060,028.81 = 428,605.03 : x - Step 2: Convert to fraction form
768,135.97/1,060,028.81 = 428,605.03/x - Step 3: Cross multiply
768,135.97x = 1,060,028.81 × 428,605.03 - Step 4: Simplify right side
768,135.97x = 454,333,679,910.91 - Step 5: Solve for x
x = 454,333,679,910.91/768,135.97 - Step 6: Final answer
x = 591,475.60
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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.