Finding the Fourth Proportional to 664,458.44, 916,905.09 and 374,055.00
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Solution
The fourth proportional to 664,458.44, 916,905.09 and 374,055.00 is: 516,169.12
Step by Step Solution
- Step 1: Write the proportion equation
664,458.44 : 916,905.09 = 374,055.00 : x - Step 2: Convert to fraction form
664,458.44/916,905.09 = 374,055.00/x - Step 3: Cross multiply
664,458.44x = 916,905.09 × 374,055.00 - Step 4: Simplify right side
664,458.44x = 342,972,928,855.43 - Step 5: Solve for x
x = 342,972,928,855.43/664,458.44 - Step 6: Final answer
x = 516,169.12
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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.