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Finding the Fourth Proportional to 546,763.58, 820,145.37 and 489,190.80

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Solution

The fourth proportional to 546,763.58, 820,145.37 and 489,190.80 is: 733,786.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,763.58 : 820,145.37 = 489,190.80 : x
  2. Step 2: Convert to fraction form
    546,763.58/820,145.37 = 489,190.80/x
  3. Step 3: Cross multiply
    546,763.58x = 820,145.37 × 489,190.80
  4. Step 4: Simplify right side
    546,763.58x = 401,207,567,220.64
  5. Step 5: Solve for x
    x = 401,207,567,220.64/546,763.58
  6. Step 6: Final answer
    x = 733,786.20

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Similar ratio
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1.5x scale

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.