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Finding the Fourth Proportional to 529,772.80, 794,659.20 and 489,337.60

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Solution

The fourth proportional to 529,772.80, 794,659.20 and 489,337.60 is: 734,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,772.80 : 794,659.20 = 489,337.60 : x
  2. Step 2: Convert to fraction form
    529,772.80/794,659.20 = 489,337.60/x
  3. Step 3: Cross multiply
    529,772.80x = 794,659.20 × 489,337.60
  4. Step 4: Simplify right side
    529,772.80x = 388,856,625,745.92
  5. Step 5: Solve for x
    x = 388,856,625,745.92/529,772.80
  6. Step 6: Final answer
    x = 734,006.40

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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.