Home / 939,109.33-1,295,961.69-509,383.27

Finding the Fourth Proportional to 939,109.33, 1,295,961.69 and 509,383.27

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Solution

The fourth proportional to 939,109.33, 1,295,961.69 and 509,383.27 is: 702,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,109.33 : 1,295,961.69 = 509,383.27 : x
  2. Step 2: Convert to fraction form
    939,109.33/1,295,961.69 = 509,383.27/x
  3. Step 3: Cross multiply
    939,109.33x = 1,295,961.69 × 509,383.27
  4. Step 4: Simplify right side
    939,109.33x = 660,141,203,446.93
  5. Step 5: Solve for x
    x = 660,141,203,446.93/939,109.33
  6. Step 6: Final answer
    x = 702,943.93

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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.