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Finding the Fourth Proportional to 455,429.41, 683,142.67 and 123,005.41

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Solution

The fourth proportional to 455,429.41, 683,142.67 and 123,005.41 is: 184,507.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,429.41 : 683,142.67 = 123,005.41 : x
  2. Step 2: Convert to fraction form
    455,429.41/683,142.67 = 123,005.41/x
  3. Step 3: Cross multiply
    455,429.41x = 683,142.67 × 123,005.41
  4. Step 4: Simplify right side
    455,429.41x = 84,030,244,211.84
  5. Step 5: Solve for x
    x = 84,030,244,211.84/455,429.41
  6. Step 6: Final answer
    x = 184,507.72

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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.