Finding the Fourth Proportional to 456,673.74, 629,793.49 and 392,122.73
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Solution
The fourth proportional to 456,673.74, 629,793.49 and 392,122.73 is: 540,771.94
Step by Step Solution
- Step 1: Write the proportion equation
456,673.74 : 629,793.49 = 392,122.73 : x - Step 2: Convert to fraction form
456,673.74/629,793.49 = 392,122.73/x - Step 3: Cross multiply
456,673.74x = 629,793.49 × 392,122.73 - Step 4: Simplify right side
456,673.74x = 246,956,342,635.03 - Step 5: Solve for x
x = 246,956,342,635.03/456,673.74 - Step 6: Final answer
x = 540,771.94
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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.