Finding the Fourth Proportional to 679,759.97, 938,114.61 and 449,921.26
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Solution
The fourth proportional to 679,759.97, 938,114.61 and 449,921.26 is: 620,921.68
Step by Step Solution
- Step 1: Write the proportion equation
679,759.97 : 938,114.61 = 449,921.26 : x - Step 2: Convert to fraction form
679,759.97/938,114.61 = 449,921.26/x - Step 3: Cross multiply
679,759.97x = 938,114.61 × 449,921.26 - Step 4: Simplify right side
679,759.97x = 422,077,702,665.04 - Step 5: Solve for x
x = 422,077,702,665.04/679,759.97 - Step 6: Final answer
x = 620,921.68
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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.