Home / 686,027.39-1,028,491.56-326,017.58

Finding the Fourth Proportional to 686,027.39, 1,028,491.56 and 326,017.58

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Solution

The fourth proportional to 686,027.39, 1,028,491.56 and 326,017.58 is: 488,765.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,027.39 : 1,028,491.56 = 326,017.58 : x
  2. Step 2: Convert to fraction form
    686,027.39/1,028,491.56 = 326,017.58/x
  3. Step 3: Cross multiply
    686,027.39x = 1,028,491.56 × 326,017.58
  4. Step 4: Simplify right side
    686,027.39x = 335,306,324,299.17
  5. Step 5: Solve for x
    x = 335,306,324,299.17/686,027.39
  6. Step 6: Final answer
    x = 488,765.22

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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.