Finding the Fourth Proportional to 1,264,491.20, 1,896,341.92 and 422,846.40
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Solution
The fourth proportional to 1,264,491.20, 1,896,341.92 and 422,846.40 is: 634,137.55
Step by Step Solution
- Step 1: Write the proportion equation
1,264,491.20 : 1,896,341.92 = 422,846.40 : x - Step 2: Convert to fraction form
1,264,491.20/1,896,341.92 = 422,846.40/x - Step 3: Cross multiply
1,264,491.20x = 1,896,341.92 × 422,846.40 - Step 4: Simplify right side
1,264,491.20x = 801,861,354,041.09 - Step 5: Solve for x
x = 801,861,354,041.09/1,264,491.20 - Step 6: Final answer
x = 634,137.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.