Finding the Fourth Proportional to 669,373.24, 923,642.14 and 393,743.60
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Solution
The fourth proportional to 669,373.24, 923,642.14 and 393,743.60 is: 543,311.50
Step by Step Solution
- Step 1: Write the proportion equation
669,373.24 : 923,642.14 = 393,743.60 : x - Step 2: Convert to fraction form
669,373.24/923,642.14 = 393,743.60/x - Step 3: Cross multiply
669,373.24x = 923,642.14 × 393,743.60 - Step 4: Simplify right side
669,373.24x = 363,678,181,315.30 - Step 5: Solve for x
x = 363,678,181,315.30/669,373.24 - Step 6: Final answer
x = 543,311.50
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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.