Finding the Fourth Proportional to 515,357.53, 711,197.67 and 285,929.88
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Solution
The fourth proportional to 515,357.53, 711,197.67 and 285,929.88 is: 394,585.61
Step by Step Solution
- Step 1: Write the proportion equation
515,357.53 : 711,197.67 = 285,929.88 : x - Step 2: Convert to fraction form
515,357.53/711,197.67 = 285,929.88/x - Step 3: Cross multiply
515,357.53x = 711,197.67 × 285,929.88 - Step 4: Simplify right side
515,357.53x = 203,352,664,439.38 - Step 5: Solve for x
x = 203,352,664,439.38/515,357.53 - Step 6: Final answer
x = 394,585.61
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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.