Finding the Fourth Proportional to 669,133.14, 923,378.67 and 382,645.86
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Solution
The fourth proportional to 669,133.14, 923,378.67 and 382,645.86 is: 528,036.95
Step by Step Solution
- Step 1: Write the proportion equation
669,133.14 : 923,378.67 = 382,645.86 : x - Step 2: Convert to fraction form
669,133.14/923,378.67 = 382,645.86/x - Step 3: Cross multiply
669,133.14x = 923,378.67 × 382,645.86 - Step 4: Simplify right side
669,133.14x = 353,327,025,287.81 - Step 5: Solve for x
x = 353,327,025,287.81/669,133.14 - Step 6: Final answer
x = 528,036.95
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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.