Finding the Fourth Proportional to 1,689,782.10, 2,534,672.54 and 1,122,271.13
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Solution
The fourth proportional to 1,689,782.10, 2,534,672.54 and 1,122,271.13 is: 1,683,406.28
Step by Step Solution
- Step 1: Write the proportion equation
1,689,782.10 : 2,534,672.54 = 1,122,271.13 : x - Step 2: Convert to fraction form
1,689,782.10/2,534,672.54 = 1,122,271.13/x - Step 3: Cross multiply
1,689,782.10x = 2,534,672.54 × 1,122,271.13 - Step 4: Simplify right side
1,689,782.10x = 2,844,589,797,361.05 - Step 5: Solve for x
x = 2,844,589,797,361.05/1,689,782.10 - Step 6: Final answer
x = 1,683,406.28
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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.