Finding the Fourth Proportional to 744,257.58, 1,027,120.32 and 438,537.75
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Solution
The fourth proportional to 744,257.58, 1,027,120.32 and 438,537.75 is: 605,208.53
Step by Step Solution
- Step 1: Write the proportion equation
744,257.58 : 1,027,120.32 = 438,537.75 : x - Step 2: Convert to fraction form
744,257.58/1,027,120.32 = 438,537.75/x - Step 3: Cross multiply
744,257.58x = 1,027,120.32 × 438,537.75 - Step 4: Simplify right side
744,257.58x = 450,431,034,112.08 - Step 5: Solve for x
x = 450,431,034,112.08/744,257.58 - Step 6: Final answer
x = 605,208.53
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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.