Home / 847,107.11-1,169,007.82-465,133.90

Finding the Fourth Proportional to 847,107.11, 1,169,007.82 and 465,133.90

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Solution

The fourth proportional to 847,107.11, 1,169,007.82 and 465,133.90 is: 641,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,107.11 : 1,169,007.82 = 465,133.90 : x
  2. Step 2: Convert to fraction form
    847,107.11/1,169,007.82 = 465,133.90/x
  3. Step 3: Cross multiply
    847,107.11x = 1,169,007.82 × 465,133.90
  4. Step 4: Simplify right side
    847,107.11x = 543,745,161,764.89
  5. Step 5: Solve for x
    x = 543,745,161,764.89/847,107.11
  6. Step 6: Final answer
    x = 641,884.78

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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.