Finding the Fourth Proportional to 774.24, 1,068 and 463.68
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Solution
The fourth proportional to 774.24, 1,068 and 463.68 is: 639.61
Step by Step Solution
- Step 1: Write the proportion equation
774.24 : 1,068 = 463.68 : x - Step 2: Convert to fraction form
774.24/1,068 = 463.68/x - Step 3: Cross multiply
774.24x = 1,068 × 463.68 - Step 4: Simplify right side
774.24x = 495,210.24 - Step 5: Solve for x
x = 495,210.24/774.24 - Step 6: Final answer
x = 639.61
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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.