Home / 499,384.20-749,076.30-331,422.60

Finding the Fourth Proportional to 499,384.20, 749,076.30 and 331,422.60

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Solution

The fourth proportional to 499,384.20, 749,076.30 and 331,422.60 is: 497,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,384.20 : 749,076.30 = 331,422.60 : x
  2. Step 2: Convert to fraction form
    499,384.20/749,076.30 = 331,422.60/x
  3. Step 3: Cross multiply
    499,384.20x = 749,076.30 × 331,422.60
  4. Step 4: Simplify right side
    499,384.20x = 248,260,814,944.38
  5. Step 5: Solve for x
    x = 248,260,814,944.38/499,384.20
  6. Step 6: Final answer
    x = 497,133.90

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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.