Finding the Fourth Proportional to 700.63, 966.68 and 420.99
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Solution
The fourth proportional to 700.63, 966.68 and 420.99 is: 580.85
Step by Step Solution
- Step 1: Write the proportion equation
700.63 : 966.68 = 420.99 : x - Step 2: Convert to fraction form
700.63/966.68 = 420.99/x - Step 3: Cross multiply
700.63x = 966.68 × 420.99 - Step 4: Simplify right side
700.63x = 406,958.46 - Step 5: Solve for x
x = 406,958.46/700.63 - Step 6: Final answer
x = 580.85
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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.