Home / 687,359.46-948,554.01-381,481.92

Finding the Fourth Proportional to 687,359.46, 948,554.01 and 381,481.92

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Solution

The fourth proportional to 687,359.46, 948,554.01 and 381,481.92 is: 526,443.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,359.46 : 948,554.01 = 381,481.92 : x
  2. Step 2: Convert to fraction form
    687,359.46/948,554.01 = 381,481.92/x
  3. Step 3: Cross multiply
    687,359.46x = 948,554.01 × 381,481.92
  4. Step 4: Simplify right side
    687,359.46x = 361,856,204,958.50
  5. Step 5: Solve for x
    x = 361,856,204,958.50/687,359.46
  6. Step 6: Final answer
    x = 526,443.91

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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.