Home / 683,403.60-1,025,105.40-262,693.20

Finding the Fourth Proportional to 683,403.60, 1,025,105.40 and 262,693.20

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Solution

The fourth proportional to 683,403.60, 1,025,105.40 and 262,693.20 is: 394,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,403.60 : 1,025,105.40 = 262,693.20 : x
  2. Step 2: Convert to fraction form
    683,403.60/1,025,105.40 = 262,693.20/x
  3. Step 3: Cross multiply
    683,403.60x = 1,025,105.40 × 262,693.20
  4. Step 4: Simplify right side
    683,403.60x = 269,288,217,863.28
  5. Step 5: Solve for x
    x = 269,288,217,863.28/683,403.60
  6. Step 6: Final answer
    x = 394,039.80

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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.