Home / 547,447.30-821,193.57-187,865.31

Finding the Fourth Proportional to 547,447.30, 821,193.57 and 187,865.31

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Solution

The fourth proportional to 547,447.30, 821,193.57 and 187,865.31 is: 281,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,447.30 : 821,193.57 = 187,865.31 : x
  2. Step 2: Convert to fraction form
    547,447.30/821,193.57 = 187,865.31/x
  3. Step 3: Cross multiply
    547,447.30x = 821,193.57 × 187,865.31
  4. Step 4: Simplify right side
    547,447.30x = 154,273,784,598.06
  5. Step 5: Solve for x
    x = 154,273,784,598.06/547,447.30
  6. Step 6: Final answer
    x = 281,805.73

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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.