Home / 687,177.39-948,272.79-381,250.53

Finding the Fourth Proportional to 687,177.39, 948,272.79 and 381,250.53

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Solution

The fourth proportional to 687,177.39, 948,272.79 and 381,250.53 is: 526,107.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,177.39 : 948,272.79 = 381,250.53 : x
  2. Step 2: Convert to fraction form
    687,177.39/948,272.79 = 381,250.53/x
  3. Step 3: Cross multiply
    687,177.39x = 948,272.79 × 381,250.53
  4. Step 4: Simplify right side
    687,177.39x = 361,529,503,772.08
  5. Step 5: Solve for x
    x = 361,529,503,772.08/687,177.39
  6. Step 6: Final answer
    x = 526,107.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.