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Finding the Fourth Proportional to 490,076.20, 735,287.10 and 472,796.20

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Solution

The fourth proportional to 490,076.20, 735,287.10 and 472,796.20 is: 709,361.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,076.20 : 735,287.10 = 472,796.20 : x
  2. Step 2: Convert to fraction form
    490,076.20/735,287.10 = 472,796.20/x
  3. Step 3: Cross multiply
    490,076.20x = 735,287.10 × 472,796.20
  4. Step 4: Simplify right side
    490,076.20x = 347,640,946,789.02
  5. Step 5: Solve for x
    x = 347,640,946,789.02/490,076.20
  6. Step 6: Final answer
    x = 709,361.01

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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.