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Finding the Fourth Proportional to 409,930.45, 565,704.80 and 228,654.12

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Solution

The fourth proportional to 409,930.45, 565,704.80 and 228,654.12 is: 315,543.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,930.45 : 565,704.80 = 228,654.12 : x
  2. Step 2: Convert to fraction form
    409,930.45/565,704.80 = 228,654.12/x
  3. Step 3: Cross multiply
    409,930.45x = 565,704.80 × 228,654.12
  4. Step 4: Simplify right side
    409,930.45x = 129,350,735,059.35
  5. Step 5: Solve for x
    x = 129,350,735,059.35/409,930.45
  6. Step 6: Final answer
    x = 315,543.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.