Finding the Fourth Proportional to 667,405.35, 921,014.64 and 361,474.65
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Solution
The fourth proportional to 667,405.35, 921,014.64 and 361,474.65 is: 498,832.45
Step by Step Solution
- Step 1: Write the proportion equation
667,405.35 : 921,014.64 = 361,474.65 : x - Step 2: Convert to fraction form
667,405.35/921,014.64 = 361,474.65/x - Step 3: Cross multiply
667,405.35x = 921,014.64 × 361,474.65 - Step 4: Simplify right side
667,405.35x = 332,923,444,638.88 - Step 5: Solve for x
x = 332,923,444,638.88/667,405.35 - Step 6: Final answer
x = 498,832.45
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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.