Finding the Fourth Proportional to 479,543.31, 661,759.67 and 261,744.80
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Solution
The fourth proportional to 479,543.31, 661,759.67 and 261,744.80 is: 361,202.31
Step by Step Solution
- Step 1: Write the proportion equation
479,543.31 : 661,759.67 = 261,744.80 : x - Step 2: Convert to fraction form
479,543.31/661,759.67 = 261,744.80/x - Step 3: Cross multiply
479,543.31x = 661,759.67 × 261,744.80 - Step 4: Simplify right side
479,543.31x = 173,212,149,817.78 - Step 5: Solve for x
x = 173,212,149,817.78/479,543.31 - Step 6: Final answer
x = 361,202.31
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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.