Home / 454,945.60-682,393.80-139,403.44

Finding the Fourth Proportional to 454,945.60, 682,393.80 and 139,403.44

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Solution

The fourth proportional to 454,945.60, 682,393.80 and 139,403.44 is: 209,097.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,945.60 : 682,393.80 = 139,403.44 : x
  2. Step 2: Convert to fraction form
    454,945.60/682,393.80 = 139,403.44/x
  3. Step 3: Cross multiply
    454,945.60x = 682,393.80 × 139,403.44
  4. Step 4: Simplify right side
    454,945.60x = 95,128,043,154.67
  5. Step 5: Solve for x
    x = 95,128,043,154.67/454,945.60
  6. Step 6: Final answer
    x = 209,097.62

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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.