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Finding the Fourth Proportional to 328,004.60, 491,229.30 and 328,004.60

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Solution

The fourth proportional to 328,004.60, 491,229.30 and 328,004.60 is: 491,229.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,004.60 : 491,229.30 = 328,004.60 : x
  2. Step 2: Convert to fraction form
    328,004.60/491,229.30 = 328,004.60/x
  3. Step 3: Cross multiply
    328,004.60x = 491,229.30 × 328,004.60
  4. Step 4: Simplify right side
    328,004.60x = 161,125,470,054.78
  5. Step 5: Solve for x
    x = 161,125,470,054.78/328,004.60
  6. Step 6: Final answer
    x = 491,229.30

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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.