Finding the Fourth Proportional to 1,021,107.36, 1,530,872.09 and 515,408.05
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Solution
The fourth proportional to 1,021,107.36, 1,530,872.09 and 515,408.05 is: 772,713.85
Step by Step Solution
- Step 1: Write the proportion equation
1,021,107.36 : 1,530,872.09 = 515,408.05 : x - Step 2: Convert to fraction form
1,021,107.36/1,530,872.09 = 515,408.05/x - Step 3: Cross multiply
1,021,107.36x = 1,530,872.09 × 515,408.05 - Step 4: Simplify right side
1,021,107.36x = 789,023,798,706.33 - Step 5: Solve for x
x = 789,023,798,706.33/1,021,107.36 - Step 6: Final answer
x = 772,713.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.