Finding the Fourth Proportional to 729,421.80, 1,093,614.30 and 330,253.80
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Solution
The fourth proportional to 729,421.80, 1,093,614.30 and 330,253.80 is: 495,145.99
Step by Step Solution
- Step 1: Write the proportion equation
729,421.80 : 1,093,614.30 = 330,253.80 : x - Step 2: Convert to fraction form
729,421.80/1,093,614.30 = 330,253.80/x - Step 3: Cross multiply
729,421.80x = 1,093,614.30 × 330,253.80 - Step 4: Simplify right side
729,421.80x = 361,170,278,309.34 - Step 5: Solve for x
x = 361,170,278,309.34/729,421.80 - Step 6: Final answer
x = 495,145.99
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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.