Finding the Fourth Proportional to 479,709.26, 719,438.43 and 142,659.08
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Solution
The fourth proportional to 479,709.26, 719,438.43 and 142,659.08 is: 213,951.31
Step by Step Solution
- Step 1: Write the proportion equation
479,709.26 : 719,438.43 = 142,659.08 : x - Step 2: Convert to fraction form
479,709.26/719,438.43 = 142,659.08/x - Step 3: Cross multiply
479,709.26x = 719,438.43 × 142,659.08 - Step 4: Simplify right side
479,709.26x = 102,634,424,540.44 - Step 5: Solve for x
x = 102,634,424,540.44/479,709.26 - Step 6: Final answer
x = 213,951.31
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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.