Finding the Fourth Proportional to 1,332,020.58, 1,838,160.99 and 728,408.58
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Solution
The fourth proportional to 1,332,020.58, 1,838,160.99 and 728,408.58 is: 1,005,188.85
Step by Step Solution
- Step 1: Write the proportion equation
1,332,020.58 : 1,838,160.99 = 728,408.58 : x - Step 2: Convert to fraction form
1,332,020.58/1,838,160.99 = 728,408.58/x - Step 3: Cross multiply
1,332,020.58x = 1,838,160.99 × 728,408.58 - Step 4: Simplify right side
1,332,020.58x = 1,338,932,236,537.29 - Step 5: Solve for x
x = 1,338,932,236,537.29/1,332,020.58 - Step 6: Final answer
x = 1,005,188.85
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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.