Finding the Fourth Proportional to 2,171,048.60, 2,996,405.79 and 1,204,490.29
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Solution
The fourth proportional to 2,171,048.60, 2,996,405.79 and 1,204,490.29 is: 1,662,395.62
Step by Step Solution
- Step 1: Write the proportion equation
2,171,048.60 : 2,996,405.79 = 1,204,490.29 : x - Step 2: Convert to fraction form
2,171,048.60/2,996,405.79 = 1,204,490.29/x - Step 3: Cross multiply
2,171,048.60x = 2,996,405.79 × 1,204,490.29 - Step 4: Simplify right side
2,171,048.60x = 3,609,141,678,954.78 - Step 5: Solve for x
x = 3,609,141,678,954.78/2,171,048.60 - Step 6: Final answer
x = 1,662,395.62
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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.