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Finding the Fourth Proportional to 329,711.70, 494,567.55 and 327,743.40

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Solution

The fourth proportional to 329,711.70, 494,567.55 and 327,743.40 is: 491,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,711.70 : 494,567.55 = 327,743.40 : x
  2. Step 2: Convert to fraction form
    329,711.70/494,567.55 = 327,743.40/x
  3. Step 3: Cross multiply
    329,711.70x = 494,567.55 × 327,743.40
  4. Step 4: Simplify right side
    329,711.70x = 162,091,250,366.67
  5. Step 5: Solve for x
    x = 162,091,250,366.67/329,711.70
  6. Step 6: Final answer
    x = 491,615.10

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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.