Home / 862,212.73-1,189,853.89-499,846.65

Finding the Fourth Proportional to 862,212.73, 1,189,853.89 and 499,846.65

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Solution

The fourth proportional to 862,212.73, 1,189,853.89 and 499,846.65 is: 689,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,212.73 : 1,189,853.89 = 499,846.65 : x
  2. Step 2: Convert to fraction form
    862,212.73/1,189,853.89 = 499,846.65/x
  3. Step 3: Cross multiply
    862,212.73x = 1,189,853.89 × 499,846.65
  4. Step 4: Simplify right side
    862,212.73x = 594,744,480,905.97
  5. Step 5: Solve for x
    x = 594,744,480,905.97/862,212.73
  6. Step 6: Final answer
    x = 689,788.56

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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.