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Finding the Fourth Proportional to 484,453.60, 726,939.60 and 203,999.20

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Solution

The fourth proportional to 484,453.60, 726,939.60 and 203,999.20 is: 306,107.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,453.60 : 726,939.60 = 203,999.20 : x
  2. Step 2: Convert to fraction form
    484,453.60/726,939.60 = 203,999.20/x
  3. Step 3: Cross multiply
    484,453.60x = 726,939.60 × 203,999.20
  4. Step 4: Simplify right side
    484,453.60x = 148,295,096,848.32
  5. Step 5: Solve for x
    x = 148,295,096,848.32/484,453.60
  6. Step 6: Final answer
    x = 306,107.95

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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.