Finding the Fourth Proportional to 1,977,391.68, 2,728,940.40 and 1,117,960.08
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Solution
The fourth proportional to 1,977,391.68, 2,728,940.40 and 1,117,960.08 is: 1,542,864.00
Step by Step Solution
- Step 1: Write the proportion equation
1,977,391.68 : 2,728,940.40 = 1,117,960.08 : x - Step 2: Convert to fraction form
1,977,391.68/2,728,940.40 = 1,117,960.08/x - Step 3: Cross multiply
1,977,391.68x = 2,728,940.40 × 1,117,960.08 - Step 4: Simplify right side
1,977,391.68x = 3,050,846,427,899.23 - Step 5: Solve for x
x = 3,050,846,427,899.23/1,977,391.68 - Step 6: Final answer
x = 1,542,864.00
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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.