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Finding the Fourth Proportional to 529,489.60, 794,234.40 and 305,540.80

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Solution

The fourth proportional to 529,489.60, 794,234.40 and 305,540.80 is: 458,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,489.60 : 794,234.40 = 305,540.80 : x
  2. Step 2: Convert to fraction form
    529,489.60/794,234.40 = 305,540.80/x
  3. Step 3: Cross multiply
    529,489.60x = 794,234.40 × 305,540.80
  4. Step 4: Simplify right side
    529,489.60x = 242,671,013,963.52
  5. Step 5: Solve for x
    x = 242,671,013,963.52/529,489.60
  6. Step 6: Final answer
    x = 458,311.20

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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.