Finding the Fourth Proportional to 1,542,390.70, 2,132,562.25 and 1,350,855.07
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Solution
The fourth proportional to 1,542,390.70, 2,132,562.25 and 1,350,855.07 is: 1,867,738.52
Step by Step Solution
- Step 1: Write the proportion equation
1,542,390.70 : 2,132,562.25 = 1,350,855.07 : x - Step 2: Convert to fraction form
1,542,390.70/2,132,562.25 = 1,350,855.07/x - Step 3: Cross multiply
1,542,390.70x = 2,132,562.25 × 1,350,855.07 - Step 4: Simplify right side
1,542,390.70x = 2,880,782,524,393.85 - Step 5: Solve for x
x = 2,880,782,524,393.85/1,542,390.70 - Step 6: Final answer
x = 1,867,738.52
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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.