Finding the Fourth Proportional to 745,351.92, 1,028,551.32 and 405,819.12
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Solution
The fourth proportional to 745,351.92, 1,028,551.32 and 405,819.12 is: 560,011.69
Step by Step Solution
- Step 1: Write the proportion equation
745,351.92 : 1,028,551.32 = 405,819.12 : x - Step 2: Convert to fraction form
745,351.92/1,028,551.32 = 405,819.12/x - Step 3: Cross multiply
745,351.92x = 1,028,551.32 × 405,819.12 - Step 4: Simplify right side
745,351.92x = 417,405,791,557.24 - Step 5: Solve for x
x = 417,405,791,557.24/745,351.92 - Step 6: Final answer
x = 560,011.69
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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.