Finding the Fourth Proportional to 3,987,431.65, 5,980,857.29 and 1,558,129.87
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Solution
The fourth proportional to 3,987,431.65, 5,980,857.29 and 1,558,129.87 is: 2,337,081.41
Step by Step Solution
- Step 1: Write the proportion equation
3,987,431.65 : 5,980,857.29 = 1,558,129.87 : x - Step 2: Convert to fraction form
3,987,431.65/5,980,857.29 = 1,558,129.87/x - Step 3: Cross multiply
3,987,431.65x = 5,980,857.29 × 1,558,129.87 - Step 4: Simplify right side
3,987,431.65x = 9,318,952,391,756.25 - Step 5: Solve for x
x = 9,318,952,391,756.25/3,987,431.65 - Step 6: Final answer
x = 2,337,081.41
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.