Finding the Fourth Proportional to 515,680.36, 711,627.88 and 286,224.28
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Solution
The fourth proportional to 515,680.36, 711,627.88 and 286,224.28 is: 394,983.39
Step by Step Solution
- Step 1: Write the proportion equation
515,680.36 : 711,627.88 = 286,224.28 : x - Step 2: Convert to fraction form
515,680.36/711,627.88 = 286,224.28/x - Step 3: Cross multiply
515,680.36x = 711,627.88 × 286,224.28 - Step 4: Simplify right side
515,680.36x = 203,685,177,580.93 - Step 5: Solve for x
x = 203,685,177,580.93/515,680.36 - Step 6: Final answer
x = 394,983.39
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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.