Finding the Fourth Proportional to 485,265.29, 669,668.74 and 281,437.07
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Solution
The fourth proportional to 485,265.29, 669,668.74 and 281,437.07 is: 388,384.68
Step by Step Solution
- Step 1: Write the proportion equation
485,265.29 : 669,668.74 = 281,437.07 : x - Step 2: Convert to fraction form
485,265.29/669,668.74 = 281,437.07/x - Step 3: Cross multiply
485,265.29x = 669,668.74 × 281,437.07 - Step 4: Simplify right side
485,265.29x = 188,469,604,004.26 - Step 5: Solve for x
x = 188,469,604,004.26/485,265.29 - Step 6: Final answer
x = 388,384.68
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1.5x scale
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.