Finding the Fourth Proportional to 3,639,455.28, 5,458,986.09 and 1,115,117.82
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Solution
The fourth proportional to 3,639,455.28, 5,458,986.09 and 1,115,117.82 is: 1,672,616.42
Step by Step Solution
- Step 1: Write the proportion equation
3,639,455.28 : 5,458,986.09 = 1,115,117.82 : x - Step 2: Convert to fraction form
3,639,455.28/5,458,986.09 = 1,115,117.82/x - Step 3: Cross multiply
3,639,455.28x = 5,458,986.09 × 1,115,117.82 - Step 4: Simplify right side
3,639,455.28x = 6,087,412,668,091.12 - Step 5: Solve for x
x = 6,087,412,668,091.12/3,639,455.28 - Step 6: Final answer
x = 1,672,616.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.