Finding the Fourth Proportional to 669,717.20, 1,002,169.92 and 491,782.88
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Solution
The fourth proportional to 669,717.20, 1,002,169.92 and 491,782.88 is: 735,907.65
Step by Step Solution
- Step 1: Write the proportion equation
669,717.20 : 1,002,169.92 = 491,782.88 : x - Step 2: Convert to fraction form
669,717.20/1,002,169.92 = 491,782.88/x - Step 3: Cross multiply
669,717.20x = 1,002,169.92 × 491,782.88 - Step 4: Simplify right side
669,717.20x = 492,850,009,506.97 - Step 5: Solve for x
x = 492,850,009,506.97/669,717.20 - Step 6: Final answer
x = 735,907.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.