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Finding the Fourth Proportional to 664,896.60, 996,324.30 and 495,622.80

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Solution

The fourth proportional to 664,896.60, 996,324.30 and 495,622.80 is: 742,673.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,896.60 : 996,324.30 = 495,622.80 : x
  2. Step 2: Convert to fraction form
    664,896.60/996,324.30 = 495,622.80/x
  3. Step 3: Cross multiply
    664,896.60x = 996,324.30 × 495,622.80
  4. Step 4: Simplify right side
    664,896.60x = 493,801,039,274.04
  5. Step 5: Solve for x
    x = 493,801,039,274.04/664,896.60
  6. Step 6: Final answer
    x = 742,673.43

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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.