Finding the Fourth Proportional to 568,455.12, 784,469.12 and 313,806.60
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Solution
The fourth proportional to 568,455.12, 784,469.12 and 313,806.60 is: 433,053.69
Step by Step Solution
- Step 1: Write the proportion equation
568,455.12 : 784,469.12 = 313,806.60 : x - Step 2: Convert to fraction form
568,455.12/784,469.12 = 313,806.60/x - Step 3: Cross multiply
568,455.12x = 784,469.12 × 313,806.60 - Step 4: Simplify right side
568,455.12x = 246,171,587,352.19 - Step 5: Solve for x
x = 246,171,587,352.19/568,455.12 - Step 6: Final answer
x = 433,053.69
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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.