Finding the Fourth Proportional to 513,874.20, 770,811.30 and 218,347.80
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Solution
The fourth proportional to 513,874.20, 770,811.30 and 218,347.80 is: 327,521.70
Step by Step Solution
- Step 1: Write the proportion equation
513,874.20 : 770,811.30 = 218,347.80 : x - Step 2: Convert to fraction form
513,874.20/770,811.30 = 218,347.80/x - Step 3: Cross multiply
513,874.20x = 770,811.30 × 218,347.80 - Step 4: Simplify right side
513,874.20x = 168,304,951,570.14 - Step 5: Solve for x
x = 168,304,951,570.14/513,874.20 - Step 6: Final answer
x = 327,521.70
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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.