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Finding the Fourth Proportional to 485,087.60, 727,631.40 and 332,872.40

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Solution

The fourth proportional to 485,087.60, 727,631.40 and 332,872.40 is: 499,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,087.60 : 727,631.40 = 332,872.40 : x
  2. Step 2: Convert to fraction form
    485,087.60/727,631.40 = 332,872.40/x
  3. Step 3: Cross multiply
    485,087.60x = 727,631.40 × 332,872.40
  4. Step 4: Simplify right side
    485,087.60x = 242,208,410,433.36
  5. Step 5: Solve for x
    x = 242,208,410,433.36/485,087.60
  6. Step 6: Final answer
    x = 499,308.60

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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.