Finding the Fourth Proportional to 515,197.87, 771,821.36 and 343,903.07
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Solution
The fourth proportional to 515,197.87, 771,821.36 and 343,903.07 is: 515,203.48
Step by Step Solution
- Step 1: Write the proportion equation
515,197.87 : 771,821.36 = 343,903.07 : x - Step 2: Convert to fraction form
515,197.87/771,821.36 = 343,903.07/x - Step 3: Cross multiply
515,197.87x = 771,821.36 × 343,903.07 - Step 4: Simplify right side
515,197.87x = 265,431,732,353.76 - Step 5: Solve for x
x = 265,431,732,353.76/515,197.87 - Step 6: Final answer
x = 515,203.48
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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.