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Finding the Fourth Proportional to 481,998.47, 665,005.88 and 278,022.04

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Solution

The fourth proportional to 481,998.47, 665,005.88 and 278,022.04 is: 383,582.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,998.47 : 665,005.88 = 278,022.04 : x
  2. Step 2: Convert to fraction form
    481,998.47/665,005.88 = 278,022.04/x
  3. Step 3: Cross multiply
    481,998.47x = 665,005.88 × 278,022.04
  4. Step 4: Simplify right side
    481,998.47x = 184,886,291,369.60
  5. Step 5: Solve for x
    x = 184,886,291,369.60/481,998.47
  6. Step 6: Final answer
    x = 383,582.73

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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.