Finding the Fourth Proportional to 326,864.64, 490,711.68 and 277,927.68
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Solution
The fourth proportional to 326,864.64, 490,711.68 and 277,927.68 is: 417,244.15
Step by Step Solution
- Step 1: Write the proportion equation
326,864.64 : 490,711.68 = 277,927.68 : x - Step 2: Convert to fraction form
326,864.64/490,711.68 = 277,927.68/x - Step 3: Cross multiply
326,864.64x = 490,711.68 × 277,927.68 - Step 4: Simplify right side
326,864.64x = 136,382,358,771.30 - Step 5: Solve for x
x = 136,382,358,771.30/326,864.64 - Step 6: Final answer
x = 417,244.15
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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.