Finding the Fourth Proportional to 505,310.37, 697,286.41 and 287,461.09
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Solution
The fourth proportional to 505,310.37, 697,286.41 and 287,461.09 is: 396,672.47
Step by Step Solution
- Step 1: Write the proportion equation
505,310.37 : 697,286.41 = 287,461.09 : x - Step 2: Convert to fraction form
505,310.37/697,286.41 = 287,461.09/x - Step 3: Cross multiply
505,310.37x = 697,286.41 × 287,461.09 - Step 4: Simplify right side
505,310.37x = 200,442,711,460.79 - Step 5: Solve for x
x = 200,442,711,460.79/505,310.37 - Step 6: Final answer
x = 396,672.47
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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.