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Finding the Fourth Proportional to 862,793.40, 1,294,190.10 and 803,744.40

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Solution

The fourth proportional to 862,793.40, 1,294,190.10 and 803,744.40 is: 1,205,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,793.40 : 1,294,190.10 = 803,744.40 : x
  2. Step 2: Convert to fraction form
    862,793.40/1,294,190.10 = 803,744.40/x
  3. Step 3: Cross multiply
    862,793.40x = 1,294,190.10 × 803,744.40
  4. Step 4: Simplify right side
    862,793.40x = 1,040,198,045,410.44
  5. Step 5: Solve for x
    x = 1,040,198,045,410.44/862,793.40
  6. Step 6: Final answer
    x = 1,205,616.60

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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.