Finding the Fourth Proportional to 1,440,035.20, 2,155,905.60 and 880,163.20
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Solution
The fourth proportional to 1,440,035.20, 2,155,905.60 and 880,163.20 is: 1,317,709.99
Step by Step Solution
- Step 1: Write the proportion equation
1,440,035.20 : 2,155,905.60 = 880,163.20 : x - Step 2: Convert to fraction form
1,440,035.20/2,155,905.60 = 880,163.20/x - Step 3: Cross multiply
1,440,035.20x = 2,155,905.60 × 880,163.20 - Step 4: Simplify right side
1,440,035.20x = 1,897,548,771,793.92 - Step 5: Solve for x
x = 1,897,548,771,793.92/1,440,035.20 - Step 6: Final answer
x = 1,317,709.99
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1.5x scale
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.