Finding the Fourth Proportional to 4,987,938.16, 7,482,920.55 and 1,576,757.62
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Solution
The fourth proportional to 4,987,938.16, 7,482,920.55 and 1,576,757.62 is: 2,365,456.75
Step by Step Solution
- Step 1: Write the proportion equation
4,987,938.16 : 7,482,920.55 = 1,576,757.62 : x - Step 2: Convert to fraction form
4,987,938.16/7,482,920.55 = 1,576,757.62/x - Step 3: Cross multiply
4,987,938.16x = 7,482,920.55 × 1,576,757.62 - Step 4: Simplify right side
4,987,938.16x = 11,798,751,997,067.09 - Step 5: Solve for x
x = 11,798,751,997,067.09/4,987,938.16 - Step 6: Final answer
x = 2,365,456.75
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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.