Finding the Fourth Proportional to 1,272,350.25, 1,755,846.99 and 728,494.38
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Solution
The fourth proportional to 1,272,350.25, 1,755,846.99 and 728,494.38 is: 1,005,324.33
Step by Step Solution
- Step 1: Write the proportion equation
1,272,350.25 : 1,755,846.99 = 728,494.38 : x - Step 2: Convert to fraction form
1,272,350.25/1,755,846.99 = 728,494.38/x - Step 3: Cross multiply
1,272,350.25x = 1,755,846.99 × 728,494.38 - Step 4: Simplify right side
1,272,350.25x = 1,279,124,664,354.92 - Step 5: Solve for x
x = 1,279,124,664,354.92/1,272,350.25 - Step 6: Final answer
x = 1,005,324.33
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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.