Finding the Fourth Proportional to 519,731.75, 717,229.82 and 281,267.75
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Solution
The fourth proportional to 519,731.75, 717,229.82 and 281,267.75 is: 388,149.50
Step by Step Solution
- Step 1: Write the proportion equation
519,731.75 : 717,229.82 = 281,267.75 : x - Step 2: Convert to fraction form
519,731.75/717,229.82 = 281,267.75/x - Step 3: Cross multiply
519,731.75x = 717,229.82 × 281,267.75 - Step 4: Simplify right side
519,731.75x = 201,733,617,704.31 - Step 5: Solve for x
x = 201,733,617,704.31/519,731.75 - Step 6: Final answer
x = 388,149.50
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1.5x scale
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.