Finding the Fourth Proportional to 512,631.49, 768,509.36 and 362,399.17
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Solution
The fourth proportional to 512,631.49, 768,509.36 and 362,399.17 is: 543,289.20
Step by Step Solution
- Step 1: Write the proportion equation
512,631.49 : 768,509.36 = 362,399.17 : x - Step 2: Convert to fraction form
512,631.49/768,509.36 = 362,399.17/x - Step 3: Cross multiply
512,631.49x = 768,509.36 × 362,399.17 - Step 4: Simplify right side
512,631.49x = 278,507,152,389.24 - Step 5: Solve for x
x = 278,507,152,389.24/512,631.49 - Step 6: Final answer
x = 543,289.20
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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.