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Finding the Fourth Proportional to 324,384.40, 486,576.60 and 309,622.15

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Solution

The fourth proportional to 324,384.40, 486,576.60 and 309,622.15 is: 464,433.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,384.40 : 486,576.60 = 309,622.15 : x
  2. Step 2: Convert to fraction form
    324,384.40/486,576.60 = 309,622.15/x
  3. Step 3: Cross multiply
    324,384.40x = 486,576.60 × 309,622.15
  4. Step 4: Simplify right side
    324,384.40x = 150,654,893,031.69
  5. Step 5: Solve for x
    x = 150,654,893,031.69/324,384.40
  6. Step 6: Final answer
    x = 464,433.23

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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.