Finding the Fourth Proportional to 747,800.10, 1,121,570.55 and 274,241.70
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Solution
The fourth proportional to 747,800.10, 1,121,570.55 and 274,241.70 is: 411,315.02
Step by Step Solution
- Step 1: Write the proportion equation
747,800.10 : 1,121,570.55 = 274,241.70 : x - Step 2: Convert to fraction form
747,800.10/1,121,570.55 = 274,241.70/x - Step 3: Cross multiply
747,800.10x = 1,121,570.55 × 274,241.70 - Step 4: Simplify right side
747,800.10x = 307,581,414,301.94 - Step 5: Solve for x
x = 307,581,414,301.94/747,800.10 - Step 6: Final answer
x = 411,315.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.