Finding the Fourth Proportional to 2,187,447.30, 3,283,114.95 and 1,287,764.10
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Solution
The fourth proportional to 2,187,447.30, 3,283,114.95 and 1,287,764.10 is: 1,932,790.60
Step by Step Solution
- Step 1: Write the proportion equation
2,187,447.30 : 3,283,114.95 = 1,287,764.10 : x - Step 2: Convert to fraction form
2,187,447.30/3,283,114.95 = 1,287,764.10/x - Step 3: Cross multiply
2,187,447.30x = 3,283,114.95 × 1,287,764.10 - Step 4: Simplify right side
2,187,447.30x = 4,227,877,568,783.30 - Step 5: Solve for x
x = 4,227,877,568,783.30/2,187,447.30 - Step 6: Final answer
x = 1,932,790.60
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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.