Finding the Fourth Proportional to 745,128.75, 1,028,277.81 and 405,597
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Solution
The fourth proportional to 745,128.75, 1,028,277.81 and 405,597 is: 559,723.93
Step by Step Solution
- Step 1: Write the proportion equation
745,128.75 : 1,028,277.81 = 405,597 : x - Step 2: Convert to fraction form
745,128.75/1,028,277.81 = 405,597/x - Step 3: Cross multiply
745,128.75x = 1,028,277.81 × 405,597 - Step 4: Simplify right side
745,128.75x = 417,066,394,902.57 - Step 5: Solve for x
x = 417,066,394,902.57/745,128.75 - Step 6: Final answer
x = 559,723.93
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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.