Home / 498,311.19-687,665.40-271,956.69

Finding the Fourth Proportional to 498,311.19, 687,665.40 and 271,956.69

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Solution

The fourth proportional to 498,311.19, 687,665.40 and 271,956.69 is: 375,298.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,311.19 : 687,665.40 = 271,956.69 : x
  2. Step 2: Convert to fraction form
    498,311.19/687,665.40 = 271,956.69/x
  3. Step 3: Cross multiply
    498,311.19x = 687,665.40 × 271,956.69
  4. Step 4: Simplify right side
    498,311.19x = 187,015,204,991.69
  5. Step 5: Solve for x
    x = 187,015,204,991.69/498,311.19
  6. Step 6: Final answer
    x = 375,298.02

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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.