Finding the Fourth Proportional to 4,428,026.20, 6,643,205.70 and 1,587,842.20
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Solution
The fourth proportional to 4,428,026.20, 6,643,205.70 and 1,587,842.20 is: 2,382,181.56
Step by Step Solution
- Step 1: Write the proportion equation
4,428,026.20 : 6,643,205.70 = 1,587,842.20 : x - Step 2: Convert to fraction form
4,428,026.20/6,643,205.70 = 1,587,842.20/x - Step 3: Cross multiply
4,428,026.20x = 6,643,205.70 × 1,587,842.20 - Step 4: Simplify right side
4,428,026.20x = 10,548,362,353,740.54 - Step 5: Solve for x
x = 10,548,362,353,740.54/4,428,026.20 - Step 6: Final answer
x = 2,382,181.56
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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.