Finding the Fourth Proportional to 691,520.52, 954,310.09 and 381,458.70
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Solution
The fourth proportional to 691,520.52, 954,310.09 and 381,458.70 is: 526,419.50
Step by Step Solution
- Step 1: Write the proportion equation
691,520.52 : 954,310.09 = 381,458.70 : x - Step 2: Convert to fraction form
691,520.52/954,310.09 = 381,458.70/x - Step 3: Cross multiply
691,520.52x = 954,310.09 × 381,458.70 - Step 4: Simplify right side
691,520.52x = 364,029,886,089.87 - Step 5: Solve for x
x = 364,029,886,089.87/691,520.52 - Step 6: Final answer
x = 526,419.50
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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.