Finding the Fourth Proportional to 1,107,183.70, 1,660,689.15 and 433,134.10
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Solution
The fourth proportional to 1,107,183.70, 1,660,689.15 and 433,134.10 is: 649,667.35
Step by Step Solution
- Step 1: Write the proportion equation
1,107,183.70 : 1,660,689.15 = 433,134.10 : x - Step 2: Convert to fraction form
1,107,183.70/1,660,689.15 = 433,134.10/x - Step 3: Cross multiply
1,107,183.70x = 1,660,689.15 × 433,134.10 - Step 4: Simplify right side
1,107,183.70x = 719,301,100,365.02 - Step 5: Solve for x
x = 719,301,100,365.02/1,107,183.70 - Step 6: Final answer
x = 649,667.35
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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.