Home / 1,299,149.38-1,949,056.53-540,738.79

Finding the Fourth Proportional to 1,299,149.38, 1,949,056.53 and 540,738.79

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Solution

The fourth proportional to 1,299,149.38, 1,949,056.53 and 540,738.79 is: 811,246.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,149.38 : 1,949,056.53 = 540,738.79 : x
  2. Step 2: Convert to fraction form
    1,299,149.38/1,949,056.53 = 540,738.79/x
  3. Step 3: Cross multiply
    1,299,149.38x = 1,949,056.53 × 540,738.79
  4. Step 4: Simplify right side
    1,299,149.38x = 1,053,930,462,773.39
  5. Step 5: Solve for x
    x = 1,053,930,462,773.39/1,299,149.38
  6. Step 6: Final answer
    x = 811,246.56

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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.