Finding the Fourth Proportional to 682,896.42, 942,440.67 and 381,090.42
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Solution
The fourth proportional to 682,896.42, 942,440.67 and 381,090.42 is: 525,929.12
Step by Step Solution
- Step 1: Write the proportion equation
682,896.42 : 942,440.67 = 381,090.42 : x - Step 2: Convert to fraction form
682,896.42/942,440.67 = 381,090.42/x - Step 3: Cross multiply
682,896.42x = 942,440.67 × 381,090.42 - Step 4: Simplify right side
682,896.42x = 359,155,110,755.38 - Step 5: Solve for x
x = 359,155,110,755.38/682,896.42 - Step 6: Final answer
x = 525,929.12
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1.5x scale
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.