Home / 1,145,154.90-1,717,732.35-809,231.70

Finding the Fourth Proportional to 1,145,154.90, 1,717,732.35 and 809,231.70

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Solution

The fourth proportional to 1,145,154.90, 1,717,732.35 and 809,231.70 is: 1,213,847.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,154.90 : 1,717,732.35 = 809,231.70 : x
  2. Step 2: Convert to fraction form
    1,145,154.90/1,717,732.35 = 809,231.70/x
  3. Step 3: Cross multiply
    1,145,154.90x = 1,717,732.35 × 809,231.70
  4. Step 4: Simplify right side
    1,145,154.90x = 1,390,043,469,735.50
  5. Step 5: Solve for x
    x = 1,390,043,469,735.50/1,145,154.90
  6. Step 6: Final answer
    x = 1,213,847.55

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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.