Finding the Fourth Proportional to 531,891.84, 734,013.12 and 290,173.68
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Solution
The fourth proportional to 531,891.84, 734,013.12 and 290,173.68 is: 400,440.98
Step by Step Solution
- Step 1: Write the proportion equation
531,891.84 : 734,013.12 = 290,173.68 : x - Step 2: Convert to fraction form
531,891.84/734,013.12 = 290,173.68/x - Step 3: Cross multiply
531,891.84x = 734,013.12 × 290,173.68 - Step 4: Simplify right side
531,891.84x = 212,991,288,198.68 - Step 5: Solve for x
x = 212,991,288,198.68/531,891.84 - Step 6: Final answer
x = 400,440.98
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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.