Finding the Fourth Proportional to 644.17, 957.97 and 623.67
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Solution
The fourth proportional to 644.17, 957.97 and 623.67 is: 927.48
Step by Step Solution
- Step 1: Write the proportion equation
644.17 : 957.97 = 623.67 : x - Step 2: Convert to fraction form
644.17/957.97 = 623.67/x - Step 3: Cross multiply
644.17x = 957.97 × 623.67 - Step 4: Simplify right side
644.17x = 597,449.24 - Step 5: Solve for x
x = 597,449.24/644.17 - Step 6: Final answer
x = 927.48
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.