Finding the Fourth Proportional to 669,535.12, 923,733.68 and 379,106.99
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Solution
The fourth proportional to 669,535.12, 923,733.68 and 379,106.99 is: 523,040.37
Step by Step Solution
- Step 1: Write the proportion equation
669,535.12 : 923,733.68 = 379,106.99 : x - Step 2: Convert to fraction form
669,535.12/923,733.68 = 379,106.99/x - Step 3: Cross multiply
669,535.12x = 923,733.68 × 379,106.99 - Step 4: Simplify right side
669,535.12x = 350,193,894,986.42 - Step 5: Solve for x
x = 350,193,894,986.42/669,535.12 - Step 6: Final answer
x = 523,040.37
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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.