Finding the Fourth Proportional to 2,657,731.20, 3,981,844.80 and 1,617,187.20
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Solution
The fourth proportional to 2,657,731.20, 3,981,844.80 and 1,617,187.20 is: 2,422,889.28
Step by Step Solution
- Step 1: Write the proportion equation
2,657,731.20 : 3,981,844.80 = 1,617,187.20 : x - Step 2: Convert to fraction form
2,657,731.20/3,981,844.80 = 1,617,187.20/x - Step 3: Cross multiply
2,657,731.20x = 3,981,844.80 × 1,617,187.20 - Step 4: Simplify right side
2,657,731.20x = 6,439,388,442,946.56 - Step 5: Solve for x
x = 6,439,388,442,946.56/2,657,731.20 - Step 6: Final answer
x = 2,422,889.28
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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.