Finding the Fourth Proportional to 1,542,592.09, 2,128,899.95 and 1,136,548.81
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Solution
The fourth proportional to 1,542,592.09, 2,128,899.95 and 1,136,548.81 is: 1,568,527.88
Step by Step Solution
- Step 1: Write the proportion equation
1,542,592.09 : 2,128,899.95 = 1,136,548.81 : x - Step 2: Convert to fraction form
1,542,592.09/2,128,899.95 = 1,136,548.81/x - Step 3: Cross multiply
1,542,592.09x = 2,128,899.95 × 1,136,548.81 - Step 4: Simplify right side
1,542,592.09x = 2,419,598,699,098.82 - Step 5: Solve for x
x = 2,419,598,699,098.82/1,542,592.09 - Step 6: Final answer
x = 1,568,527.88
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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.