Finding the Fourth Proportional to 745,074.38, 1,028,174.11 and 422,765.26
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Solution
The fourth proportional to 745,074.38, 1,028,174.11 and 422,765.26 is: 583,399.86
Step by Step Solution
- Step 1: Write the proportion equation
745,074.38 : 1,028,174.11 = 422,765.26 : x - Step 2: Convert to fraction form
745,074.38/1,028,174.11 = 422,765.26/x - Step 3: Cross multiply
745,074.38x = 1,028,174.11 × 422,765.26 - Step 4: Simplify right side
745,074.38x = 434,676,291,312.07 - Step 5: Solve for x
x = 434,676,291,312.07/745,074.38 - Step 6: Final answer
x = 583,399.86
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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.