Finding the Fourth Proportional to 515,680.26, 711,625.42 and 286,225.70
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Solution
The fourth proportional to 515,680.26, 711,625.42 and 286,225.70 is: 394,984.06
Step by Step Solution
- Step 1: Write the proportion equation
515,680.26 : 711,625.42 = 286,225.70 : x - Step 2: Convert to fraction form
515,680.26/711,625.42 = 286,225.70/x - Step 3: Cross multiply
515,680.26x = 711,625.42 × 286,225.70 - Step 4: Simplify right side
515,680.26x = 203,685,483,977.29 - Step 5: Solve for x
x = 203,685,483,977.29/515,680.26 - Step 6: Final answer
x = 394,984.06
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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.