Finding the Fourth Proportional to 2,111,704.54, 2,916,557.97 and 1,431,460.06
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Solution
The fourth proportional to 2,111,704.54, 2,916,557.97 and 1,431,460.06 is: 1,977,045.64
Step by Step Solution
- Step 1: Write the proportion equation
2,111,704.54 : 2,916,557.97 = 1,431,460.06 : x - Step 2: Convert to fraction form
2,111,704.54/2,916,557.97 = 1,431,460.06/x - Step 3: Cross multiply
2,111,704.54x = 2,916,557.97 × 1,431,460.06 - Step 4: Simplify right side
2,111,704.54x = 4,174,936,246,729.68 - Step 5: Solve for x
x = 4,174,936,246,729.68/2,111,704.54 - Step 6: Final answer
x = 1,977,045.64
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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.