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Finding the Fourth Proportional to 636,622, 954,730.12 and 210,078.33

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Solution

The fourth proportional to 636,622, 954,730.12 and 210,078.33 is: 315,050.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,622 : 954,730.12 = 210,078.33 : x
  2. Step 2: Convert to fraction form
    636,622/954,730.12 = 210,078.33/x
  3. Step 3: Cross multiply
    636,622x = 954,730.12 × 210,078.33
  4. Step 4: Simplify right side
    636,622x = 200,568,109,210.30
  5. Step 5: Solve for x
    x = 200,568,109,210.30/636,622
  6. Step 6: Final answer
    x = 315,050.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.