Finding the Fourth Proportional to 623,315.36, 860,163.52 and 351,383.44
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Solution
The fourth proportional to 623,315.36, 860,163.52 and 351,383.44 is: 484,902.56
Step by Step Solution
- Step 1: Write the proportion equation
623,315.36 : 860,163.52 = 351,383.44 : x - Step 2: Convert to fraction form
623,315.36/860,163.52 = 351,383.44/x - Step 3: Cross multiply
623,315.36x = 860,163.52 × 351,383.44 - Step 4: Simplify right side
623,315.36x = 302,247,216,620.11 - Step 5: Solve for x
x = 302,247,216,620.11/623,315.36 - Step 6: Final answer
x = 484,902.56
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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.