Finding the Fourth Proportional to 1,380,424.28, 1,905,321.18 and 799,553.84
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Solution
The fourth proportional to 1,380,424.28, 1,905,321.18 and 799,553.84 is: 1,103,578.72
Step by Step Solution
- Step 1: Write the proportion equation
1,380,424.28 : 1,905,321.18 = 799,553.84 : x - Step 2: Convert to fraction form
1,380,424.28/1,905,321.18 = 799,553.84/x - Step 3: Cross multiply
1,380,424.28x = 1,905,321.18 × 799,553.84 - Step 4: Simplify right side
1,380,424.28x = 1,523,406,859,374.05 - Step 5: Solve for x
x = 1,523,406,859,374.05/1,380,424.28 - Step 6: Final answer
x = 1,103,578.72
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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.