Finding the Fourth Proportional to 456,671.99, 629,791.07 and 392,120.97
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Solution
The fourth proportional to 456,671.99, 629,791.07 and 392,120.97 is: 540,769.51
Step by Step Solution
- Step 1: Write the proportion equation
456,671.99 : 629,791.07 = 392,120.97 : x - Step 2: Convert to fraction form
456,671.99/629,791.07 = 392,120.97/x - Step 3: Cross multiply
456,671.99x = 629,791.07 × 392,120.97 - Step 4: Simplify right side
456,671.99x = 246,954,289,565.80 - Step 5: Solve for x
x = 246,954,289,565.80/456,671.99 - Step 6: Final answer
x = 540,769.51
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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.