Home / 457,226.37-631,280.66-285,406.02

Finding the Fourth Proportional to 457,226.37, 631,280.66 and 285,406.02

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Solution

The fourth proportional to 457,226.37, 631,280.66 and 285,406.02 is: 394,052.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,226.37 : 631,280.66 = 285,406.02 : x
  2. Step 2: Convert to fraction form
    457,226.37/631,280.66 = 285,406.02/x
  3. Step 3: Cross multiply
    457,226.37x = 631,280.66 × 285,406.02
  4. Step 4: Simplify right side
    457,226.37x = 180,171,299,246.54
  5. Step 5: Solve for x
    x = 180,171,299,246.54/457,226.37
  6. Step 6: Final answer
    x = 394,052.73

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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.