Finding the Fourth Proportional to 4,743,342.07, 7,114,987.55 and 1,149,107.20
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Solution
The fourth proportional to 4,743,342.07, 7,114,987.55 and 1,149,107.20 is: 1,723,654.61
Step by Step Solution
- Step 1: Write the proportion equation
4,743,342.07 : 7,114,987.55 = 1,149,107.20 : x - Step 2: Convert to fraction form
4,743,342.07/7,114,987.55 = 1,149,107.20/x - Step 3: Cross multiply
4,743,342.07x = 7,114,987.55 × 1,149,107.20 - Step 4: Simplify right side
4,743,342.07x = 8,175,883,406,700.66 - Step 5: Solve for x
x = 8,175,883,406,700.66/4,743,342.07 - Step 6: Final answer
x = 1,723,654.61
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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.