Finding the Fourth Proportional to 628,755.27, 867,682.26 and 342,277.44
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Solution
The fourth proportional to 628,755.27, 867,682.26 and 342,277.44 is: 472,342.86
Step by Step Solution
- Step 1: Write the proportion equation
628,755.27 : 867,682.26 = 342,277.44 : x - Step 2: Convert to fraction form
628,755.27/867,682.26 = 342,277.44/x - Step 3: Cross multiply
628,755.27x = 867,682.26 × 342,277.44 - Step 4: Simplify right side
628,755.27x = 296,988,062,686.21 - Step 5: Solve for x
x = 296,988,062,686.21/628,755.27 - Step 6: Final answer
x = 472,342.86
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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.