Finding the Fourth Proportional to 513,391.57, 770,785.67 and 288,909.99
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Solution
The fourth proportional to 513,391.57, 770,785.67 and 288,909.99 is: 433,757.96
Step by Step Solution
- Step 1: Write the proportion equation
513,391.57 : 770,785.67 = 288,909.99 : x - Step 2: Convert to fraction form
513,391.57/770,785.67 = 288,909.99/x - Step 3: Cross multiply
513,391.57x = 770,785.67 × 288,909.99 - Step 4: Simplify right side
513,391.57x = 222,687,680,934.12 - Step 5: Solve for x
x = 222,687,680,934.12/513,391.57 - Step 6: Final answer
x = 433,757.96
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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.