Finding the Fourth Proportional to 492,579.36, 679,745.94 and 277,717.56
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Solution
The fourth proportional to 492,579.36, 679,745.94 and 277,717.56 is: 383,242.58
Step by Step Solution
- Step 1: Write the proportion equation
492,579.36 : 679,745.94 = 277,717.56 : x - Step 2: Convert to fraction form
492,579.36/679,745.94 = 277,717.56/x - Step 3: Cross multiply
492,579.36x = 679,745.94 × 277,717.56 - Step 4: Simplify right side
492,579.36x = 188,777,383,876.71 - Step 5: Solve for x
x = 188,777,383,876.71/492,579.36 - Step 6: Final answer
x = 383,242.58
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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.