Home / 454,885.47-682,459.38-139,388.85

Finding the Fourth Proportional to 454,885.47, 682,459.38 and 139,388.85

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Solution

The fourth proportional to 454,885.47, 682,459.38 and 139,388.85 is: 209,123.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,885.47 : 682,459.38 = 139,388.85 : x
  2. Step 2: Convert to fraction form
    454,885.47/682,459.38 = 139,388.85/x
  3. Step 3: Cross multiply
    454,885.47x = 682,459.38 × 139,388.85
  4. Step 4: Simplify right side
    454,885.47x = 95,127,228,149.91
  5. Step 5: Solve for x
    x = 95,127,228,149.91/454,885.47
  6. Step 6: Final answer
    x = 209,123.47

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1.5x scale

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.