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Finding the Fourth Proportional to 329,610.40, 494,415.60 and 323,778.40

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Solution

The fourth proportional to 329,610.40, 494,415.60 and 323,778.40 is: 485,667.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,610.40 : 494,415.60 = 323,778.40 : x
  2. Step 2: Convert to fraction form
    329,610.40/494,415.60 = 323,778.40/x
  3. Step 3: Cross multiply
    329,610.40x = 494,415.60 × 323,778.40
  4. Step 4: Simplify right side
    329,610.40x = 160,081,091,903.04
  5. Step 5: Solve for x
    x = 160,081,091,903.04/329,610.40
  6. Step 6: Final answer
    x = 485,667.60

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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.