Finding the Fourth Proportional to 513,823.20, 770,734.80 and 513,823.20
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Solution
The fourth proportional to 513,823.20, 770,734.80 and 513,823.20 is: 770,734.80
Step by Step Solution
- Step 1: Write the proportion equation
513,823.20 : 770,734.80 = 513,823.20 : x - Step 2: Convert to fraction form
513,823.20/770,734.80 = 513,823.20/x - Step 3: Cross multiply
513,823.20x = 770,734.80 × 513,823.20 - Step 4: Simplify right side
513,823.20x = 396,021,421,287.36 - Step 5: Solve for x
x = 396,021,421,287.36/513,823.20 - Step 6: Final answer
x = 770,734.80
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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.