Finding the Fourth Proportional to 812,464.96, 1,121,170.80 and 449,860
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Solution
The fourth proportional to 812,464.96, 1,121,170.80 and 449,860 is: 620,789.72
Step by Step Solution
- Step 1: Write the proportion equation
812,464.96 : 1,121,170.80 = 449,860 : x - Step 2: Convert to fraction form
812,464.96/1,121,170.80 = 449,860/x - Step 3: Cross multiply
812,464.96x = 1,121,170.80 × 449,860 - Step 4: Simplify right side
812,464.96x = 504,369,896,088 - Step 5: Solve for x
x = 504,369,896,088/812,464.96 - Step 6: Final answer
x = 620,789.72
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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.