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Finding the Fourth Proportional to 1,763,171.28, 2,644,786.08 and 765,899.28

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Solution

The fourth proportional to 1,763,171.28, 2,644,786.08 and 765,899.28 is: 1,148,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,763,171.28 : 2,644,786.08 = 765,899.28 : x
  2. Step 2: Convert to fraction form
    1,763,171.28/2,644,786.08 = 765,899.28/x
  3. Step 3: Cross multiply
    1,763,171.28x = 2,644,786.08 × 765,899.28
  4. Step 4: Simplify right side
    1,763,171.28x = 2,025,639,754,426.02
  5. Step 5: Solve for x
    x = 2,025,639,754,426.02/1,763,171.28
  6. Step 6: Final answer
    x = 1,148,861.59

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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.