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Finding the Fourth Proportional to 529,766.80, 794,650.20 and 489,331.60

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Solution

The fourth proportional to 529,766.80, 794,650.20 and 489,331.60 is: 733,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,766.80 : 794,650.20 = 489,331.60 : x
  2. Step 2: Convert to fraction form
    529,766.80/794,650.20 = 489,331.60/x
  3. Step 3: Cross multiply
    529,766.80x = 794,650.20 × 489,331.60
  4. Step 4: Simplify right side
    529,766.80x = 388,847,453,806.32
  5. Step 5: Solve for x
    x = 388,847,453,806.32/529,766.80
  6. Step 6: Final answer
    x = 733,997.40

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Similar ratio
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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.