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Finding the Fourth Proportional to 494,500.40, 741,750.60 and 328,288.40

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Solution

The fourth proportional to 494,500.40, 741,750.60 and 328,288.40 is: 492,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,500.40 : 741,750.60 = 328,288.40 : x
  2. Step 2: Convert to fraction form
    494,500.40/741,750.60 = 328,288.40/x
  3. Step 3: Cross multiply
    494,500.40x = 741,750.60 × 328,288.40
  4. Step 4: Simplify right side
    494,500.40x = 243,508,117,673.04
  5. Step 5: Solve for x
    x = 243,508,117,673.04/494,500.40
  6. Step 6: Final answer
    x = 492,432.60

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Double scale
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Similar ratio
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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.