Finding the Fourth Proportional to 1,332,132.75, 1,838,386.94 and 728,520.75
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Solution
The fourth proportional to 1,332,132.75, 1,838,386.94 and 728,520.75 is: 1,005,382.56
Step by Step Solution
- Step 1: Write the proportion equation
1,332,132.75 : 1,838,386.94 = 728,520.75 : x - Step 2: Convert to fraction form
1,332,132.75/1,838,386.94 = 728,520.75/x - Step 3: Cross multiply
1,332,132.75x = 1,838,386.94 × 728,520.75 - Step 4: Simplify right side
1,332,132.75x = 1,339,303,028,676.40 - Step 5: Solve for x
x = 1,339,303,028,676.40/1,332,132.75 - Step 6: Final answer
x = 1,005,382.56
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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.