Finding the Fourth Proportional to 511,740.98, 766,349.99 and 321,729.96
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Solution
The fourth proportional to 511,740.98, 766,349.99 and 321,729.96 is: 481,801.85
Step by Step Solution
- Step 1: Write the proportion equation
511,740.98 : 766,349.99 = 321,729.96 : x - Step 2: Convert to fraction form
511,740.98/766,349.99 = 321,729.96/x - Step 3: Cross multiply
511,740.98x = 766,349.99 × 321,729.96 - Step 4: Simplify right side
511,740.98x = 246,557,750,020.05 - Step 5: Solve for x
x = 246,557,750,020.05/511,740.98 - Step 6: Final answer
x = 481,801.85
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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.