Finding the Fourth Proportional to 3,186,546.21, 4,781,812.32 and 1,293,287.72
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Solution
The fourth proportional to 3,186,546.21, 4,781,812.32 and 1,293,287.72 is: 1,940,740.45
Step by Step Solution
- Step 1: Write the proportion equation
3,186,546.21 : 4,781,812.32 = 1,293,287.72 : x - Step 2: Convert to fraction form
3,186,546.21/4,781,812.32 = 1,293,287.72/x - Step 3: Cross multiply
3,186,546.21x = 4,781,812.32 × 1,293,287.72 - Step 4: Simplify right side
3,186,546.21x = 6,184,259,128,891.65 - Step 5: Solve for x
x = 6,184,259,128,891.65/3,186,546.21 - Step 6: Final answer
x = 1,940,740.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.