Finding the Fourth Proportional to 775,728.72, 1,164,682.98 and 396,921.12
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Solution
The fourth proportional to 775,728.72, 1,164,682.98 and 396,921.12 is: 595,939.35
Step by Step Solution
- Step 1: Write the proportion equation
775,728.72 : 1,164,682.98 = 396,921.12 : x - Step 2: Convert to fraction form
775,728.72/1,164,682.98 = 396,921.12/x - Step 3: Cross multiply
775,728.72x = 1,164,682.98 × 396,921.12 - Step 4: Simplify right side
775,728.72x = 462,287,272,866.54 - Step 5: Solve for x
x = 462,287,272,866.54/775,728.72 - Step 6: Final answer
x = 595,939.35
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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.