Finding the Fourth Proportional to 805,107.78, 1,207,195.02 and 331,257.78
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Solution
The fourth proportional to 805,107.78, 1,207,195.02 and 331,257.78 is: 496,694.67
Step by Step Solution
- Step 1: Write the proportion equation
805,107.78 : 1,207,195.02 = 331,257.78 : x - Step 2: Convert to fraction form
805,107.78/1,207,195.02 = 331,257.78/x - Step 3: Cross multiply
805,107.78x = 1,207,195.02 × 331,257.78 - Step 4: Simplify right side
805,107.78x = 399,892,742,352.26 - Step 5: Solve for x
x = 399,892,742,352.26/805,107.78 - Step 6: Final answer
x = 496,694.67
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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.