Finding the Fourth Proportional to 1,220,230.26, 1,683,348.21 and 767,770.74
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Solution
The fourth proportional to 1,220,230.26, 1,683,348.21 and 767,770.74 is: 1,059,165.26
Step by Step Solution
- Step 1: Write the proportion equation
1,220,230.26 : 1,683,348.21 = 767,770.74 : x - Step 2: Convert to fraction form
1,220,230.26/1,683,348.21 = 767,770.74/x - Step 3: Cross multiply
1,220,230.26x = 1,683,348.21 × 767,770.74 - Step 4: Simplify right side
1,220,230.26x = 1,292,425,500,869.38 - Step 5: Solve for x
x = 1,292,425,500,869.38/1,220,230.26 - Step 6: Final answer
x = 1,059,165.26
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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.