Finding the Fourth Proportional to 509,694.81, 762,878.65 and 374,723.19
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Solution
The fourth proportional to 509,694.81, 762,878.65 and 374,723.19 is: 560,861.75
Step by Step Solution
- Step 1: Write the proportion equation
509,694.81 : 762,878.65 = 374,723.19 : x - Step 2: Convert to fraction form
509,694.81/762,878.65 = 374,723.19/x - Step 3: Cross multiply
509,694.81x = 762,878.65 × 374,723.19 - Step 4: Simplify right side
509,694.81x = 285,868,321,310.89 - Step 5: Solve for x
x = 285,868,321,310.89/509,694.81 - Step 6: Final answer
x = 560,861.75
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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.