Home / 687,568.44-948,829.71-381,626.97

Finding the Fourth Proportional to 687,568.44, 948,829.71 and 381,626.97

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Solution

The fourth proportional to 687,568.44, 948,829.71 and 381,626.97 is: 526,637.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,568.44 : 948,829.71 = 381,626.97 : x
  2. Step 2: Convert to fraction form
    687,568.44/948,829.71 = 381,626.97/x
  3. Step 3: Cross multiply
    687,568.44x = 948,829.71 × 381,626.97
  4. Step 4: Simplify right side
    687,568.44x = 362,099,007,273.28
  5. Step 5: Solve for x
    x = 362,099,007,273.28/687,568.44
  6. Step 6: Final answer
    x = 526,637.04

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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.