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Finding the Fourth Proportional to 457,182.04, 631,219.47 and 285,361.73

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Solution

The fourth proportional to 457,182.04, 631,219.47 and 285,361.73 is: 393,991.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,182.04 : 631,219.47 = 285,361.73 : x
  2. Step 2: Convert to fraction form
    457,182.04/631,219.47 = 285,361.73/x
  3. Step 3: Cross multiply
    457,182.04x = 631,219.47 × 285,361.73
  4. Step 4: Simplify right side
    457,182.04x = 180,125,879,968.88
  5. Step 5: Solve for x
    x = 180,125,879,968.88/457,182.04
  6. Step 6: Final answer
    x = 393,991.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.