Finding the Fourth Proportional to 1,543,191.56, 2,130,163.35 and 1,256,213.42
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Solution
The fourth proportional to 1,543,191.56, 2,130,163.35 and 1,256,213.42 is: 1,734,029.56
Step by Step Solution
- Step 1: Write the proportion equation
1,543,191.56 : 2,130,163.35 = 1,256,213.42 : x - Step 2: Convert to fraction form
1,543,191.56/2,130,163.35 = 1,256,213.42/x - Step 3: Cross multiply
1,543,191.56x = 2,130,163.35 × 1,256,213.42 - Step 4: Simplify right side
1,543,191.56x = 2,675,939,787,062.16 - Step 5: Solve for x
x = 2,675,939,787,062.16/1,543,191.56 - Step 6: Final answer
x = 1,734,029.56
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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.