Finding the Fourth Proportional to 505,711.62, 697,882.51 and 276,272.74
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Solution
The fourth proportional to 505,711.62, 697,882.51 and 276,272.74 is: 381,256.64
Step by Step Solution
- Step 1: Write the proportion equation
505,711.62 : 697,882.51 = 276,272.74 : x - Step 2: Convert to fraction form
505,711.62/697,882.51 = 276,272.74/x - Step 3: Cross multiply
505,711.62x = 697,882.51 × 276,272.74 - Step 4: Simplify right side
505,711.62x = 192,805,910,800.39 - Step 5: Solve for x
x = 192,805,910,800.39/505,711.62 - Step 6: Final answer
x = 381,256.64
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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.