Finding the Fourth Proportional to 1,998,576.24, 2,758,935.84 and 1,274,397.36
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Solution
The fourth proportional to 1,998,576.24, 2,758,935.84 and 1,274,397.36 is: 1,759,242.65
Step by Step Solution
- Step 1: Write the proportion equation
1,998,576.24 : 2,758,935.84 = 1,274,397.36 : x - Step 2: Convert to fraction form
1,998,576.24/2,758,935.84 = 1,274,397.36/x - Step 3: Cross multiply
1,998,576.24x = 2,758,935.84 × 1,274,397.36 - Step 4: Simplify right side
1,998,576.24x = 3,515,980,550,905.38 - Step 5: Solve for x
x = 3,515,980,550,905.38/1,998,576.24 - Step 6: Final answer
x = 1,759,242.65
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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.