Home / 455,407.04-682,991.32-135,472.72

Finding the Fourth Proportional to 455,407.04, 682,991.32 and 135,472.72

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Solution

The fourth proportional to 455,407.04, 682,991.32 and 135,472.72 is: 203,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,407.04 : 682,991.32 = 135,472.72 : x
  2. Step 2: Convert to fraction form
    455,407.04/682,991.32 = 135,472.72/x
  3. Step 3: Cross multiply
    455,407.04x = 682,991.32 × 135,472.72
  4. Step 4: Simplify right side
    455,407.04x = 92,526,691,856.79
  5. Step 5: Solve for x
    x = 92,526,691,856.79/455,407.04
  6. Step 6: Final answer
    x = 203,173.61

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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.