Finding the Fourth Proportional to 622,090.14, 858,213.99 and 380,382.78
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Solution
The fourth proportional to 622,090.14, 858,213.99 and 380,382.78 is: 524,762.90
Step by Step Solution
- Step 1: Write the proportion equation
622,090.14 : 858,213.99 = 380,382.78 : x - Step 2: Convert to fraction form
622,090.14/858,213.99 = 380,382.78/x - Step 3: Cross multiply
622,090.14x = 858,213.99 × 380,382.78 - Step 4: Simplify right side
622,090.14x = 326,449,823,351.09 - Step 5: Solve for x
x = 326,449,823,351.09/622,090.14 - Step 6: Final answer
x = 524,762.90
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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.