Finding the Fourth Proportional to 485,598.63, 670,175.07 and 281,711.91
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Solution
The fourth proportional to 485,598.63, 670,175.07 and 281,711.91 is: 388,790.84
Step by Step Solution
- Step 1: Write the proportion equation
485,598.63 : 670,175.07 = 281,711.91 : x - Step 2: Convert to fraction form
485,598.63/670,175.07 = 281,711.91/x - Step 3: Cross multiply
485,598.63x = 670,175.07 × 281,711.91 - Step 4: Simplify right side
485,598.63x = 188,796,299,004.08 - Step 5: Solve for x
x = 188,796,299,004.08/485,598.63 - Step 6: Final answer
x = 388,790.84
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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.