Finding the Fourth Proportional to 667,305.91, 920,882.99 and 361,382.77
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Solution
The fourth proportional to 667,305.91, 920,882.99 and 361,382.77 is: 498,708.67
Step by Step Solution
- Step 1: Write the proportion equation
667,305.91 : 920,882.99 = 361,382.77 : x - Step 2: Convert to fraction form
667,305.91/920,882.99 = 361,382.77/x - Step 3: Cross multiply
667,305.91x = 920,882.99 × 361,382.77 - Step 4: Simplify right side
667,305.91x = 332,791,239,360.75 - Step 5: Solve for x
x = 332,791,239,360.75/667,305.91 - Step 6: Final answer
x = 498,708.67
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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.