Finding the Fourth Proportional to 628,795.26, 867,687.62 and 356,863.14
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Solution
The fourth proportional to 628,795.26, 867,687.62 and 356,863.14 is: 492,442.85
Step by Step Solution
- Step 1: Write the proportion equation
628,795.26 : 867,687.62 = 356,863.14 : x - Step 2: Convert to fraction form
628,795.26/867,687.62 = 356,863.14/x - Step 3: Cross multiply
628,795.26x = 867,687.62 × 356,863.14 - Step 4: Simplify right side
628,795.26x = 309,645,726,828.01 - Step 5: Solve for x
x = 309,645,726,828.01/628,795.26 - Step 6: Final answer
x = 492,442.85
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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.