Home / 1,389,501.97-2,083,960.73-391,996.69

Finding the Fourth Proportional to 1,389,501.97, 2,083,960.73 and 391,996.69

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Solution

The fourth proportional to 1,389,501.97, 2,083,960.73 and 391,996.69 is: 587,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,501.97 : 2,083,960.73 = 391,996.69 : x
  2. Step 2: Convert to fraction form
    1,389,501.97/2,083,960.73 = 391,996.69/x
  3. Step 3: Cross multiply
    1,389,501.97x = 2,083,960.73 × 391,996.69
  4. Step 4: Simplify right side
    1,389,501.97x = 816,905,704,020.07
  5. Step 5: Solve for x
    x = 816,905,704,020.07/1,389,501.97
  6. Step 6: Final answer
    x = 587,912.59

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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.