Home / 821,274.89-1,231,946.24-281,901.65

Finding the Fourth Proportional to 821,274.89, 1,231,946.24 and 281,901.65

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Solution

The fourth proportional to 821,274.89, 1,231,946.24 and 281,901.65 is: 422,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,274.89 : 1,231,946.24 = 281,901.65 : x
  2. Step 2: Convert to fraction form
    821,274.89/1,231,946.24 = 281,901.65/x
  3. Step 3: Cross multiply
    821,274.89x = 1,231,946.24 × 281,901.65
  4. Step 4: Simplify right side
    821,274.89x = 347,287,670,198.06
  5. Step 5: Solve for x
    x = 347,287,670,198.06/821,274.89
  6. Step 6: Final answer
    x = 422,864.11

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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.