Finding the Fourth Proportional to 515,385.23, 711,207.60 and 285,940.08
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Solution
The fourth proportional to 515,385.23, 711,207.60 and 285,940.08 is: 394,583.99
Step by Step Solution
- Step 1: Write the proportion equation
515,385.23 : 711,207.60 = 285,940.08 : x - Step 2: Convert to fraction form
515,385.23/711,207.60 = 285,940.08/x - Step 3: Cross multiply
515,385.23x = 711,207.60 × 285,940.08 - Step 4: Simplify right side
515,385.23x = 203,362,758,040.61 - Step 5: Solve for x
x = 203,362,758,040.61/515,385.23 - Step 6: Final answer
x = 394,583.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.