Home / 687,134.14-948,250.83-381,230.58

Finding the Fourth Proportional to 687,134.14, 948,250.83 and 381,230.58

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Solution

The fourth proportional to 687,134.14, 948,250.83 and 381,230.58 is: 526,101.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,134.14 : 948,250.83 = 381,230.58 : x
  2. Step 2: Convert to fraction form
    687,134.14/948,250.83 = 381,230.58/x
  3. Step 3: Cross multiply
    687,134.14x = 948,250.83 × 381,230.58
  4. Step 4: Simplify right side
    687,134.14x = 361,502,207,674.44
  5. Step 5: Solve for x
    x = 361,502,207,674.44/687,134.14
  6. Step 6: Final answer
    x = 526,101.36

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1.5x scale

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.