Finding the Fourth Proportional to 1,332,133.75, 1,838,388.32 and 728,521.75
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Solution
The fourth proportional to 1,332,133.75, 1,838,388.32 and 728,521.75 is: 1,005,383.94
Step by Step Solution
- Step 1: Write the proportion equation
1,332,133.75 : 1,838,388.32 = 728,521.75 : x - Step 2: Convert to fraction form
1,332,133.75/1,838,388.32 = 728,521.75/x - Step 3: Cross multiply
1,332,133.75x = 1,838,388.32 × 728,521.75 - Step 4: Simplify right side
1,332,133.75x = 1,339,305,876,065.96 - Step 5: Solve for x
x = 1,339,305,876,065.96/1,332,133.75 - Step 6: Final answer
x = 1,005,383.94
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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.