Finding the Fourth Proportional to 2,660,558.80, 3,991,421.40 and 863,136.40
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Solution
The fourth proportional to 2,660,558.80, 3,991,421.40 and 863,136.40 is: 1,294,893.80
Step by Step Solution
- Step 1: Write the proportion equation
2,660,558.80 : 3,991,421.40 = 863,136.40 : x - Step 2: Convert to fraction form
2,660,558.80/3,991,421.40 = 863,136.40/x - Step 3: Cross multiply
2,660,558.80x = 3,991,421.40 × 863,136.40 - Step 4: Simplify right side
2,660,558.80x = 3,445,141,098,078.96 - Step 5: Solve for x
x = 3,445,141,098,078.96/2,660,558.80 - Step 6: Final answer
x = 1,294,893.80
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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.