Finding the Fourth Proportional to 512,146.43, 769,215.54 and 417,446.09
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Solution
The fourth proportional to 512,146.43, 769,215.54 and 417,446.09 is: 626,980.88
Step by Step Solution
- Step 1: Write the proportion equation
512,146.43 : 769,215.54 = 417,446.09 : x - Step 2: Convert to fraction form
512,146.43/769,215.54 = 417,446.09/x - Step 3: Cross multiply
512,146.43x = 769,215.54 × 417,446.09 - Step 4: Simplify right side
512,146.43x = 321,106,019,540.24 - Step 5: Solve for x
x = 321,106,019,540.24/512,146.43 - Step 6: Final answer
x = 626,980.88
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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.