Finding the Fourth Proportional to 572,741.21, 790,336.62 and 331,039.44
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Solution
The fourth proportional to 572,741.21, 790,336.62 and 331,039.44 is: 456,807.70
Step by Step Solution
- Step 1: Write the proportion equation
572,741.21 : 790,336.62 = 331,039.44 : x - Step 2: Convert to fraction form
572,741.21/790,336.62 = 331,039.44/x - Step 3: Cross multiply
572,741.21x = 790,336.62 × 331,039.44 - Step 4: Simplify right side
572,741.21x = 261,632,592,096.29 - Step 5: Solve for x
x = 261,632,592,096.29/572,741.21 - Step 6: Final answer
x = 456,807.70
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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.