Finding the Fourth Proportional to 515,608.98, 711,529.68 and 286,152.94
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Solution
The fourth proportional to 515,608.98, 711,529.68 and 286,152.94 is: 394,885.12
Step by Step Solution
- Step 1: Write the proportion equation
515,608.98 : 711,529.68 = 286,152.94 : x - Step 2: Convert to fraction form
515,608.98/711,529.68 = 286,152.94/x - Step 3: Cross multiply
515,608.98x = 711,529.68 × 286,152.94 - Step 4: Simplify right side
515,608.98x = 203,606,311,791.75 - Step 5: Solve for x
x = 203,606,311,791.75/515,608.98 - Step 6: Final answer
x = 394,885.12
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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.