Finding the Fourth Proportional to 1,542,104.80, 2,129,455.92 and 970,136.80
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Solution
The fourth proportional to 1,542,104.80, 2,129,455.92 and 970,136.80 is: 1,339,638.88
Step by Step Solution
- Step 1: Write the proportion equation
1,542,104.80 : 2,129,455.92 = 970,136.80 : x - Step 2: Convert to fraction form
1,542,104.80/2,129,455.92 = 970,136.80/x - Step 3: Cross multiply
1,542,104.80x = 2,129,455.92 × 970,136.80 - Step 4: Simplify right side
1,542,104.80x = 2,065,863,551,969.86 - Step 5: Solve for x
x = 2,065,863,551,969.86/1,542,104.80 - Step 6: Final answer
x = 1,339,638.88
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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.