Finding the Fourth Proportional to 764,165.78, 1,146,178.37 and 258,668.99
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Solution
The fourth proportional to 764,165.78, 1,146,178.37 and 258,668.99 is: 387,979.68
Step by Step Solution
- Step 1: Write the proportion equation
764,165.78 : 1,146,178.37 = 258,668.99 : x - Step 2: Convert to fraction form
764,165.78/1,146,178.37 = 258,668.99/x - Step 3: Cross multiply
764,165.78x = 1,146,178.37 × 258,668.99 - Step 4: Simplify right side
764,165.78x = 296,480,796,243.53 - Step 5: Solve for x
x = 296,480,796,243.53/764,165.78 - Step 6: Final answer
x = 387,979.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.