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Finding the Fourth Proportional to 499,340.21, 749,198.87 and 299,799.69

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Solution

The fourth proportional to 499,340.21, 749,198.87 and 299,799.69 is: 449,812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,340.21 : 749,198.87 = 299,799.69 : x
  2. Step 2: Convert to fraction form
    499,340.21/749,198.87 = 299,799.69/x
  3. Step 3: Cross multiply
    499,340.21x = 749,198.87 × 299,799.69
  4. Step 4: Simplify right side
    499,340.21x = 224,609,587,475.35
  5. Step 5: Solve for x
    x = 224,609,587,475.35/499,340.21
  6. Step 6: Final answer
    x = 449,812.74

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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.