Home / 454,956.20-682,466.70-139,412.60

Finding the Fourth Proportional to 454,956.20, 682,466.70 and 139,412.60

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Solution

The fourth proportional to 454,956.20, 682,466.70 and 139,412.60 is: 209,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,956.20 : 682,466.70 = 139,412.60 : x
  2. Step 2: Convert to fraction form
    454,956.20/682,466.70 = 139,412.60/x
  3. Step 3: Cross multiply
    454,956.20x = 682,466.70 × 139,412.60
  4. Step 4: Simplify right side
    454,956.20x = 95,144,457,060.42
  5. Step 5: Solve for x
    x = 95,144,457,060.42/454,956.20
  6. Step 6: Final answer
    x = 209,128.83

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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.