Home / 484,719.56-668,739.85-280,659.09

Finding the Fourth Proportional to 484,719.56, 668,739.85 and 280,659.09

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Solution

The fourth proportional to 484,719.56, 668,739.85 and 280,659.09 is: 387,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,719.56 : 668,739.85 = 280,659.09 : x
  2. Step 2: Convert to fraction form
    484,719.56/668,739.85 = 280,659.09/x
  3. Step 3: Cross multiply
    484,719.56x = 668,739.85 × 280,659.09
  4. Step 4: Simplify right side
    484,719.56x = 187,687,919,553.86
  5. Step 5: Solve for x
    x = 187,687,919,553.86/484,719.56
  6. Step 6: Final answer
    x = 387,209.30

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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.