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Finding the Fourth Proportional to 329,704.20, 494,556.30 and 307,585.80

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Solution

The fourth proportional to 329,704.20, 494,556.30 and 307,585.80 is: 461,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,704.20 : 494,556.30 = 307,585.80 : x
  2. Step 2: Convert to fraction form
    329,704.20/494,556.30 = 307,585.80/x
  3. Step 3: Cross multiply
    329,704.20x = 494,556.30 × 307,585.80
  4. Step 4: Simplify right side
    329,704.20x = 152,118,495,180.54
  5. Step 5: Solve for x
    x = 152,118,495,180.54/329,704.20
  6. Step 6: Final answer
    x = 461,378.70

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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.