Finding the Fourth Proportional to 642,879.29, 887,195.00 and 356,382.29
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Solution
The fourth proportional to 642,879.29, 887,195.00 and 356,382.29 is: 491,819.52
Step by Step Solution
- Step 1: Write the proportion equation
642,879.29 : 887,195.00 = 356,382.29 : x - Step 2: Convert to fraction form
642,879.29/887,195.00 = 356,382.29/x - Step 3: Cross multiply
642,879.29x = 887,195.00 × 356,382.29 - Step 4: Simplify right side
642,879.29x = 316,180,586,212.63 - Step 5: Solve for x
x = 316,180,586,212.63/642,879.29 - Step 6: Final answer
x = 491,819.52
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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.