Finding the Fourth Proportional to 745,379.74, 1,028,636.49 and 423,099.73
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Solution
The fourth proportional to 745,379.74, 1,028,636.49 and 423,099.73 is: 583,884.69
Step by Step Solution
- Step 1: Write the proportion equation
745,379.74 : 1,028,636.49 = 423,099.73 : x - Step 2: Convert to fraction form
745,379.74/1,028,636.49 = 423,099.73/x - Step 3: Cross multiply
745,379.74x = 1,028,636.49 × 423,099.73 - Step 4: Simplify right side
745,379.74x = 435,215,821,187.15 - Step 5: Solve for x
x = 435,215,821,187.15/745,379.74 - Step 6: Final answer
x = 583,884.69
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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.