Home / 1,009,936.70-1,394,217.69-628,086.50

Finding the Fourth Proportional to 1,009,936.70, 1,394,217.69 and 628,086.50

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Solution

The fourth proportional to 1,009,936.70, 1,394,217.69 and 628,086.50 is: 867,073.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,936.70 : 1,394,217.69 = 628,086.50 : x
  2. Step 2: Convert to fraction form
    1,009,936.70/1,394,217.69 = 628,086.50/x
  3. Step 3: Cross multiply
    1,009,936.70x = 1,394,217.69 × 628,086.50
  4. Step 4: Simplify right side
    1,009,936.70x = 875,689,309,150.19
  5. Step 5: Solve for x
    x = 875,689,309,150.19/1,009,936.70
  6. Step 6: Final answer
    x = 867,073.46

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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.