Finding the Fourth Proportional to 768,455.97, 1,060,485.92 and 424,290.75
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Solution
The fourth proportional to 768,455.97, 1,060,485.92 and 424,290.75 is: 585,530.45
Step by Step Solution
- Step 1: Write the proportion equation
768,455.97 : 1,060,485.92 = 424,290.75 : x - Step 2: Convert to fraction form
768,455.97/1,060,485.92 = 424,290.75/x - Step 3: Cross multiply
768,455.97x = 1,060,485.92 × 424,290.75 - Step 4: Simplify right side
768,455.97x = 449,954,366,361.24 - Step 5: Solve for x
x = 449,954,366,361.24/768,455.97 - Step 6: Final answer
x = 585,530.45
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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.