Finding the Fourth Proportional to 694,327.44, 1,040,472.21 and 391,311.50
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Solution
The fourth proportional to 694,327.44, 1,040,472.21 and 391,311.50 is: 586,392.98
Step by Step Solution
- Step 1: Write the proportion equation
694,327.44 : 1,040,472.21 = 391,311.50 : x - Step 2: Convert to fraction form
694,327.44/1,040,472.21 = 391,311.50/x - Step 3: Cross multiply
694,327.44x = 1,040,472.21 × 391,311.50 - Step 4: Simplify right side
694,327.44x = 407,148,737,169.86 - Step 5: Solve for x
x = 407,148,737,169.86/694,327.44 - Step 6: Final answer
x = 586,392.98
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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.