Home / 687,177.39-948,272.80-381,250.52

Finding the Fourth Proportional to 687,177.39, 948,272.80 and 381,250.52

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Solution

The fourth proportional to 687,177.39, 948,272.80 and 381,250.52 is: 526,107.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,177.39 : 948,272.80 = 381,250.52 : x
  2. Step 2: Convert to fraction form
    687,177.39/948,272.80 = 381,250.52/x
  3. Step 3: Cross multiply
    687,177.39x = 948,272.80 × 381,250.52
  4. Step 4: Simplify right side
    687,177.39x = 361,529,498,101.86
  5. Step 5: Solve for x
    x = 361,529,498,101.86/687,177.39
  6. Step 6: Final answer
    x = 526,107.96

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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.