Finding the Fourth Proportional to 531,631.27, 733,668.74 and 289,933.75
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Solution
The fourth proportional to 531,631.27, 733,668.74 and 289,933.75 is: 400,118.17
Step by Step Solution
- Step 1: Write the proportion equation
531,631.27 : 733,668.74 = 289,933.75 : x - Step 2: Convert to fraction form
531,631.27/733,668.74 = 289,933.75/x - Step 3: Cross multiply
531,631.27x = 733,668.74 × 289,933.75 - Step 4: Simplify right side
531,631.27x = 212,715,329,045.98 - Step 5: Solve for x
x = 212,715,329,045.98/531,631.27 - Step 6: Final answer
x = 400,118.17
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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.