Finding the Fourth Proportional to 862,315.74, 1,190,022.72 and 494,860.12
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Solution
The fourth proportional to 862,315.74, 1,190,022.72 and 494,860.12 is: 682,922.46
Step by Step Solution
- Step 1: Write the proportion equation
862,315.74 : 1,190,022.72 = 494,860.12 : x - Step 2: Convert to fraction form
862,315.74/1,190,022.72 = 494,860.12/x - Step 3: Cross multiply
862,315.74x = 1,190,022.72 × 494,860.12 - Step 4: Simplify right side
862,315.74x = 588,894,783,974.73 - Step 5: Solve for x
x = 588,894,783,974.73/862,315.74 - Step 6: Final answer
x = 682,922.46
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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.