Finding the Fourth Proportional to 415,717.57, 573,647.27 and 306,879.74
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Solution
The fourth proportional to 415,717.57, 573,647.27 and 306,879.74 is: 423,462.32
Step by Step Solution
- Step 1: Write the proportion equation
415,717.57 : 573,647.27 = 306,879.74 : x - Step 2: Convert to fraction form
415,717.57/573,647.27 = 306,879.74/x - Step 3: Cross multiply
415,717.57x = 573,647.27 × 306,879.74 - Step 4: Simplify right side
415,717.57x = 176,040,722,817.85 - Step 5: Solve for x
x = 176,040,722,817.85/415,717.57 - Step 6: Final answer
x = 423,462.32
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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.