Home / 391,821.84-587,686.04-231,993.36

Finding the Fourth Proportional to 391,821.84, 587,686.04 and 231,993.36

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Solution

The fourth proportional to 391,821.84, 587,686.04 and 231,993.36 is: 347,962.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,821.84 : 587,686.04 = 231,993.36 : x
  2. Step 2: Convert to fraction form
    391,821.84/587,686.04 = 231,993.36/x
  3. Step 3: Cross multiply
    391,821.84x = 587,686.04 × 231,993.36
  4. Step 4: Simplify right side
    391,821.84x = 136,339,259,044.69
  5. Step 5: Solve for x
    x = 136,339,259,044.69/391,821.84
  6. Step 6: Final answer
    x = 347,962.38

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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.