Finding the Fourth Proportional to 783,790.20, 1,081,673.26 and 439,735.08
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Solution
The fourth proportional to 783,790.20, 1,081,673.26 and 439,735.08 is: 606,858.41
Step by Step Solution
- Step 1: Write the proportion equation
783,790.20 : 1,081,673.26 = 439,735.08 : x - Step 2: Convert to fraction form
783,790.20/1,081,673.26 = 439,735.08/x - Step 3: Cross multiply
783,790.20x = 1,081,673.26 × 439,735.08 - Step 4: Simplify right side
783,790.20x = 475,649,677,519.96 - Step 5: Solve for x
x = 475,649,677,519.96/783,790.20 - Step 6: Final answer
x = 606,858.41
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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.