Home / 939,108.33-1,295,960.31-509,382.27

Finding the Fourth Proportional to 939,108.33, 1,295,960.31 and 509,382.27

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Solution

The fourth proportional to 939,108.33, 1,295,960.31 and 509,382.27 is: 702,942.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,108.33 : 1,295,960.31 = 509,382.27 : x
  2. Step 2: Convert to fraction form
    939,108.33/1,295,960.31 = 509,382.27/x
  3. Step 3: Cross multiply
    939,108.33x = 1,295,960.31 × 509,382.27
  4. Step 4: Simplify right side
    939,108.33x = 660,139,204,537.70
  5. Step 5: Solve for x
    x = 660,139,204,537.70/939,108.33
  6. Step 6: Final answer
    x = 702,942.55

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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.