Finding the Fourth Proportional to 2,148,720.53, 2,966,005.61 and 1,277,553.13
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Solution
The fourth proportional to 2,148,720.53, 2,966,005.61 and 1,277,553.13 is: 1,763,481.88
Step by Step Solution
- Step 1: Write the proportion equation
2,148,720.53 : 2,966,005.61 = 1,277,553.13 : x - Step 2: Convert to fraction form
2,148,720.53/2,966,005.61 = 1,277,553.13/x - Step 3: Cross multiply
2,148,720.53x = 2,966,005.61 × 1,277,553.13 - Step 4: Simplify right side
2,148,720.53x = 3,789,229,729,435.27 - Step 5: Solve for x
x = 3,789,229,729,435.27/2,148,720.53 - Step 6: Final answer
x = 1,763,481.88
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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.