Finding the Fourth Proportional to 667,762.14, 921,491.72 and 381,226.26
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Solution
The fourth proportional to 667,762.14, 921,491.72 and 381,226.26 is: 526,080.80
Step by Step Solution
- Step 1: Write the proportion equation
667,762.14 : 921,491.72 = 381,226.26 : x - Step 2: Convert to fraction form
667,762.14/921,491.72 = 381,226.26/x - Step 3: Cross multiply
667,762.14x = 921,491.72 × 381,226.26 - Step 4: Simplify right side
667,762.14x = 351,296,842,036.57 - Step 5: Solve for x
x = 351,296,842,036.57/667,762.14 - Step 6: Final answer
x = 526,080.80
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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.