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Finding the Fourth Proportional to 426,122.92, 639,469.50 and 176,804.92

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Solution

The fourth proportional to 426,122.92, 639,469.50 and 176,804.92 is: 265,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,122.92 : 639,469.50 = 176,804.92 : x
  2. Step 2: Convert to fraction form
    426,122.92/639,469.50 = 176,804.92/x
  3. Step 3: Cross multiply
    426,122.92x = 639,469.50 × 176,804.92
  4. Step 4: Simplify right side
    426,122.92x = 113,061,353,789.94
  5. Step 5: Solve for x
    x = 113,061,353,789.94/426,122.92
  6. Step 6: Final answer
    x = 265,325.68

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1.5x scale

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.