Home / 1,138,306.87-1,570,801.80-628,976.44

Finding the Fourth Proportional to 1,138,306.87, 1,570,801.80 and 628,976.44

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Solution

The fourth proportional to 1,138,306.87, 1,570,801.80 and 628,976.44 is: 867,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,306.87 : 1,570,801.80 = 628,976.44 : x
  2. Step 2: Convert to fraction form
    1,138,306.87/1,570,801.80 = 628,976.44/x
  3. Step 3: Cross multiply
    1,138,306.87x = 1,570,801.80 × 628,976.44
  4. Step 4: Simplify right side
    1,138,306.87x = 987,997,324,109.59
  5. Step 5: Solve for x
    x = 987,997,324,109.59/1,138,306.87
  6. Step 6: Final answer
    x = 867,953.41

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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.