Finding the Fourth Proportional to 783,709.07, 1,081,059.20 and 492,859.31
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Solution
The fourth proportional to 783,709.07, 1,081,059.20 and 492,859.31 is: 679,856.99
Step by Step Solution
- Step 1: Write the proportion equation
783,709.07 : 1,081,059.20 = 492,859.31 : x - Step 2: Convert to fraction form
783,709.07/1,081,059.20 = 492,859.31/x - Step 3: Cross multiply
783,709.07x = 1,081,059.20 × 492,859.31 - Step 4: Simplify right side
783,709.07x = 532,810,083,511.56 - Step 5: Solve for x
x = 532,810,083,511.56/783,709.07 - Step 6: Final answer
x = 679,856.99
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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.