Finding the Fourth Proportional to 1,351,620.26, 1,865,221.75 and 731,411.85
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Solution
The fourth proportional to 1,351,620.26, 1,865,221.75 and 731,411.85 is: 1,009,340.66
Step by Step Solution
- Step 1: Write the proportion equation
1,351,620.26 : 1,865,221.75 = 731,411.85 : x - Step 2: Convert to fraction form
1,351,620.26/1,865,221.75 = 731,411.85/x - Step 3: Cross multiply
1,351,620.26x = 1,865,221.75 × 731,411.85 - Step 4: Simplify right side
1,351,620.26x = 1,364,245,288,999.21 - Step 5: Solve for x
x = 1,364,245,288,999.21/1,351,620.26 - Step 6: Final answer
x = 1,009,340.66
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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.