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Finding the Fourth Proportional to 457,304.57, 630,728.09 and 275,827.31

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Solution

The fourth proportional to 457,304.57, 630,728.09 and 275,827.31 is: 380,429.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,304.57 : 630,728.09 = 275,827.31 : x
  2. Step 2: Convert to fraction form
    457,304.57/630,728.09 = 275,827.31/x
  3. Step 3: Cross multiply
    457,304.57x = 630,728.09 × 275,827.31
  4. Step 4: Simplify right side
    457,304.57x = 173,972,027,873.36
  5. Step 5: Solve for x
    x = 173,972,027,873.36/457,304.57
  6. Step 6: Final answer
    x = 380,429.24

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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.