Finding the Fourth Proportional to 458,324.26, 687,519.51 and 191,816.62
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Solution
The fourth proportional to 458,324.26, 687,519.51 and 191,816.62 is: 287,738.79
Step by Step Solution
- Step 1: Write the proportion equation
458,324.26 : 687,519.51 = 191,816.62 : x - Step 2: Convert to fraction form
458,324.26/687,519.51 = 191,816.62/x - Step 3: Cross multiply
458,324.26x = 687,519.51 × 191,816.62 - Step 4: Simplify right side
458,324.26x = 131,877,668,592.26 - Step 5: Solve for x
x = 131,877,668,592.26/458,324.26 - Step 6: Final answer
x = 287,738.79
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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.