Finding the Fourth Proportional to 1,074,147.28, 1,611,089.61 and 442,979.08
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Solution
The fourth proportional to 1,074,147.28, 1,611,089.61 and 442,979.08 is: 664,414.47
Step by Step Solution
- Step 1: Write the proportion equation
1,074,147.28 : 1,611,089.61 = 442,979.08 : x - Step 2: Convert to fraction form
1,074,147.28/1,611,089.61 = 442,979.08/x - Step 3: Cross multiply
1,074,147.28x = 1,611,089.61 × 442,979.08 - Step 4: Simplify right side
1,074,147.28x = 713,678,993,235.36 - Step 5: Solve for x
x = 713,678,993,235.36/1,074,147.28 - Step 6: Final answer
x = 664,414.47
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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.