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Finding the Fourth Proportional to 512,762.20, 768,624.90 and 232,480.60

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Solution

The fourth proportional to 512,762.20, 768,624.90 and 232,480.60 is: 348,485.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,762.20 : 768,624.90 = 232,480.60 : x
  2. Step 2: Convert to fraction form
    512,762.20/768,624.90 = 232,480.60/x
  3. Step 3: Cross multiply
    512,762.20x = 768,624.90 × 232,480.60
  4. Step 4: Simplify right side
    512,762.20x = 178,690,377,926.94
  5. Step 5: Solve for x
    x = 178,690,377,926.94/512,762.20
  6. Step 6: Final answer
    x = 348,485.86

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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.