Home / 679,441.59-1,019,284.97-279,864.27

Finding the Fourth Proportional to 679,441.59, 1,019,284.97 and 279,864.27

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Solution

The fourth proportional to 679,441.59, 1,019,284.97 and 279,864.27 is: 419,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,441.59 : 1,019,284.97 = 279,864.27 : x
  2. Step 2: Convert to fraction form
    679,441.59/1,019,284.97 = 279,864.27/x
  3. Step 3: Cross multiply
    679,441.59x = 1,019,284.97 × 279,864.27
  4. Step 4: Simplify right side
    679,441.59x = 285,261,442,651.70
  5. Step 5: Solve for x
    x = 285,261,442,651.70/679,441.59
  6. Step 6: Final answer
    x = 419,846.90

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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.