Finding the Fourth Proportional to 772,745.13, 1,066,350.24 and 428,554.08
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Solution
The fourth proportional to 772,745.13, 1,066,350.24 and 428,554.08 is: 591,383.53
Step by Step Solution
- Step 1: Write the proportion equation
772,745.13 : 1,066,350.24 = 428,554.08 : x - Step 2: Convert to fraction form
772,745.13/1,066,350.24 = 428,554.08/x - Step 3: Cross multiply
772,745.13x = 1,066,350.24 × 428,554.08 - Step 4: Simplify right side
772,745.13x = 456,988,746,060.98 - Step 5: Solve for x
x = 456,988,746,060.98/772,745.13 - Step 6: Final answer
x = 591,383.53
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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.