Finding the Fourth Proportional to 1,288,125.74, 1,777,531.26 and 715,165.76
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Solution
The fourth proportional to 1,288,125.74, 1,777,531.26 and 715,165.76 is: 986,883.08
Step by Step Solution
- Step 1: Write the proportion equation
1,288,125.74 : 1,777,531.26 = 715,165.76 : x - Step 2: Convert to fraction form
1,288,125.74/1,777,531.26 = 715,165.76/x - Step 3: Cross multiply
1,288,125.74x = 1,777,531.26 × 715,165.76 - Step 4: Simplify right side
1,288,125.74x = 1,271,229,494,481.66 - Step 5: Solve for x
x = 1,271,229,494,481.66/1,288,125.74 - Step 6: Final answer
x = 986,883.08
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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.