Finding the Fourth Proportional to 807.52, 1,114.56 and 476
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Solution
The fourth proportional to 807.52, 1,114.56 and 476 is: 656.99
Step by Step Solution
- Step 1: Write the proportion equation
807.52 : 1,114.56 = 476 : x - Step 2: Convert to fraction form
807.52/1,114.56 = 476/x - Step 3: Cross multiply
807.52x = 1,114.56 × 476 - Step 4: Simplify right side
807.52x = 530,530.56 - Step 5: Solve for x
x = 530,530.56/807.52 - Step 6: Final answer
x = 656.99
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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.