Home / 548,127.20-821,534.70-281,750.60

Finding the Fourth Proportional to 548,127.20, 821,534.70 and 281,750.60

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Solution

The fourth proportional to 548,127.20, 821,534.70 and 281,750.60 is: 422,288.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,127.20 : 821,534.70 = 281,750.60 : x
  2. Step 2: Convert to fraction form
    548,127.20/821,534.70 = 281,750.60/x
  3. Step 3: Cross multiply
    548,127.20x = 821,534.70 × 281,750.60
  4. Step 4: Simplify right side
    548,127.20x = 231,467,894,645.82
  5. Step 5: Solve for x
    x = 231,467,894,645.82/548,127.20
  6. Step 6: Final answer
    x = 422,288.65

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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.