Home / 1,269,433.92-1,904,157.40-427,992.96

Finding the Fourth Proportional to 1,269,433.92, 1,904,157.40 and 427,992.96

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Solution

The fourth proportional to 1,269,433.92, 1,904,157.40 and 427,992.96 is: 641,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,433.92 : 1,904,157.40 = 427,992.96 : x
  2. Step 2: Convert to fraction form
    1,269,433.92/1,904,157.40 = 427,992.96/x
  3. Step 3: Cross multiply
    1,269,433.92x = 1,904,157.40 × 427,992.96
  4. Step 4: Simplify right side
    1,269,433.92x = 814,965,961,931.90
  5. Step 5: Solve for x
    x = 814,965,961,931.90/1,269,433.92
  6. Step 6: Final answer
    x = 641,991.64

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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.